diff --git a/demo/Dockerfile b/demo/Dockerfile
index ef930201..ad6df509 100644
--- a/demo/Dockerfile
+++ b/demo/Dockerfile
@@ -1,6 +1,6 @@
 FROM node:10.15
 
-LABEL maintainer="Justin Harris (justin.harris@microsoft.com)"
+LABEL maintainer="Justin D. Harris (justin.harris@microsoft.com)"
 LABEL org.label-schema.vendor="Microsoft"
 LABEL org.label-schema.url="https://github.com/microsoft/0xDeCA10B/tree/master/demo"
 LABEL org.label-schema.vcs-url="https://github.com/microsoft/0xDeCA10B/tree/master/demo"
diff --git a/demo/client/contracts/classification/Perceptron.sol b/demo/client/contracts/classification/Perceptron.sol
index b5147e55..40343c59 100644
--- a/demo/client/contracts/classification/Perceptron.sol
+++ b/demo/client/contracts/classification/Perceptron.sol
@@ -63,13 +63,13 @@ contract Perceptron is Classifier64 {
     }
 
     function update(int64[] memory data, uint64 classification) public onlyOwner {
+        // Data is binarized (data holds the indices of the features that are present).
         uint64 prediction = predict(data);
         if (prediction != classification) {
             // Update model.
             // predict checks each data[i] >= 0.
             uint i;
             uint len = data.length;
-            // Data is binarized.
             int80 change = toFloat * learningRate;
             if (classification > 0) {
                 // sign = 1
diff --git a/demo/client/contracts/data/DataHandler.sol b/demo/client/contracts/data/DataHandler.sol
index 4ca7d54b..b30d1754 100644
--- a/demo/client/contracts/data/DataHandler.sol
+++ b/demo/client/contracts/data/DataHandler.sol
@@ -46,8 +46,10 @@ contract DataHandler64 is Ownable, DataHandler {
          * The amount of the deposit that can still be claimed.
          */
         uint claimableAmount;
-
-        mapping (address => bool) claimedBy;
+        /**
+         * The set of addresses that claimed a refund or reward on this data.
+         */
+        mapping(address => bool) claimedBy;
     }
 
     mapping(bytes32 => StoredData) public addedData;
diff --git a/demo/client/migrations/2_deploy_sentiment_classifier.js b/demo/client/migrations/2_deploy_sentiment_classifier.js
index 747963a5..072a526f 100644
--- a/demo/client/migrations/2_deploy_sentiment_classifier.js
+++ b/demo/client/migrations/2_deploy_sentiment_classifier.js
@@ -60,7 +60,7 @@ module.exports = async function (deployer) {
           for (let i = initNumWords; i < weights.length; i += numWordsPerUpdate) {
             await classifier.initializeWeights(i, weights.slice(i, i + numWordsPerUpdate),
               { gas: 7.9E6 });
-            console.log(`  Added weights ${i + numWordsPerUpdate}`);
+            console.log(`  Added ${i + numWordsPerUpdate} weights.`);
           }
 
           console.log(`Deploying collaborative trainer contract.`);
diff --git a/demo/client/package.json b/demo/client/package.json
index 1a3928f6..fbee2d5a 100644
--- a/demo/client/package.json
+++ b/demo/client/package.json
@@ -18,8 +18,8 @@
     "react-dom": "^16.8.6",
     "react-router-dom": "^5.0.0",
     "react-scripts": "^2.1.8",
-    "truffle": "^5.0.22",
-    "web3": "^1.0.0-beta.52"
+    "truffle": "^5.0.29",
+    "web3": "^1.2.0"
   },
   "scripts": {
     "start": "bash deploy_client.sh",
diff --git a/demo/client/test/contracts/vpa-classifier.js b/demo/client/test/contracts/vpa-classifier.js
index 990b9a2c..930acae4 100644
--- a/demo/client/test/contracts/vpa-classifier.js
+++ b/demo/client/test/contracts/vpa-classifier.js
@@ -147,7 +147,6 @@ contract('VpaClassifier', function (accounts) {
 
     const originalDataCount = await classifier.dataCounts(classification).then(parseBN);
 
-    console.log("  Adding data.");
     const r = await instance.addData(normalizedData, classification, { from: accounts[0], value: cost });
     assert.isBelow(r.receipt.gasUsed, 7.9E6, "Too much gas used.");
     assert.isBelow(r.receipt.cumulativeGasUsed, 7.9E6, "Too much gas used.");
diff --git a/demo/client/yarn.lock b/demo/client/yarn.lock
index 924850b3..89f9deb5 100644
--- a/demo/client/yarn.lock
+++ b/demo/client/yarn.lock
@@ -972,6 +972,11 @@
   resolved "https://registry.yarnpkg.com/@nodelib/fs.stat/-/fs.stat-1.1.3.tgz#2b5a3ab3f918cca48a8c754c08168e3f03eba61b"
   integrity sha512-shAmDyaQC4H92APFoIaVDHCx5bStIocgvbwQyxPRrbUY20V1EYTbSDchWbuwlMG3V17cprZhA6+78JfB+3DTPw==
 
+"@sindresorhus/is@^0.14.0":
+  version "0.14.0"
+  resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.14.0.tgz#9fb3a3cf3132328151f353de4632e01e52102bea"
+  integrity sha512-9NET910DNaIPngYnLLPeg+Ogzqsi9uM4mSboU5y6p8S5DzMTVEsJZrawi+BoDNUVBa2DhJqQYUFvMDfgU062LQ==
+
 "@svgr/babel-plugin-add-jsx-attribute@^4.2.0":
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/@svgr/babel-plugin-add-jsx-attribute/-/babel-plugin-add-jsx-attribute-4.2.0.tgz#dadcb6218503532d6884b210e7f3c502caaa44b1"
@@ -1077,6 +1082,13 @@
     "@svgr/plugin-svgo" "^4.0.3"
     loader-utils "^1.1.0"
 
+"@szmarczak/http-timer@^1.1.2":
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/@szmarczak/http-timer/-/http-timer-1.1.2.tgz#b1665e2c461a2cd92f4c1bbf50d5454de0d4b421"
+  integrity sha512-XIB2XbzHTN6ieIjfIMV9hlVcfPU26s2vafYWQcZHWXHOxiaRZYEDKEwdl129Zyg50+foYV2jCgtrqSA6qNuNSA==
+  dependencies:
+    defer-to-connect "^1.0.1"
+
 "@tensorflow-models/universal-sentence-encoder@^1.0.1":
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/@tensorflow-models/universal-sentence-encoder/-/universal-sentence-encoder-1.0.3.tgz#40e6fe8b167837479107414b7dfdff197c25f043"
@@ -1510,6 +1522,11 @@ ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
+any-promise@1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/any-promise/-/any-promise-1.3.0.tgz#abc6afeedcea52e809cdc0376aed3ce39635d17f"
+  integrity sha1-q8av7tzqUugJzcA3au0845Y10X8=
+
 anymatch@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-2.0.0.tgz#bcb24b4f37934d9aa7ac17b4adaf89e7c76ef2eb"
@@ -2091,7 +2108,15 @@ bip66@^1.1.5:
   dependencies:
     safe-buffer "^5.0.1"
 
-bluebird@^3.5.1, bluebird@^3.5.5:
+bl@^1.0.0:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.2.tgz#a160911717103c07410cef63ef51b397c025af9c"
+  integrity sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==
+  dependencies:
+    readable-stream "^2.3.5"
+    safe-buffer "^5.1.1"
+
+bluebird@^3.5.0, bluebird@^3.5.1, bluebird@^3.5.5:
   version "3.5.5"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.5.tgz#a8d0afd73251effbbd5fe384a77d73003c17a71f"
   integrity sha512-5am6HnnfN+urzt4yfg7IgTbotDjIT/u8AJpEt0sIU9FtXfVeezXAPKswrG+xKUCOYAINpSdgZVDU6QFh+cuH3w==
@@ -2106,7 +2131,7 @@ bn.js@4.11.8, bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.11.0, bn.js@^4.
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
   integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
 
-body-parser@1.19.0:
+body-parser@1.19.0, body-parser@^1.16.0:
   version "1.19.0"
   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.19.0.tgz#96b2709e57c9c4e09a6fd66a8fd979844f69f08a"
   integrity sha512-dhEPs72UPbDnAQJ9ZKMNTP6ptJaionhP5cBb541nXPlW60Jepo9RV/a4fX4XWW9CuFNK22krhrj1+rgzifNCsw==
@@ -2194,10 +2219,10 @@ browser-resolve@^1.11.3:
   dependencies:
     resolve "1.1.7"
 
-browser-stdout@1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.0.tgz#f351d32969d32fa5d7a5567154263d928ae3bd1f"
-  integrity sha1-81HTKWnTL6XXpVZxVCY9korjvR8=
+browser-stdout@1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.1.tgz#baa559ee14ced73452229bad7326467c61fabd60"
+  integrity sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==
 
 browserify-aes@^1.0.0, browserify-aes@^1.0.4, browserify-aes@^1.0.6:
   version "1.2.0"
@@ -2238,6 +2263,14 @@ browserify-rsa@^4.0.0:
     bn.js "^4.1.0"
     randombytes "^2.0.1"
 
+browserify-sha3@^0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/browserify-sha3/-/browserify-sha3-0.0.4.tgz#086c47b8c82316c9d47022c26185954576dd8e26"
+  integrity sha1-CGxHuMgjFsnUcCLCYYWVRXbdjiY=
+  dependencies:
+    js-sha3 "^0.6.1"
+    safe-buffer "^5.1.1"
+
 browserify-sign@^4.0.0:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/browserify-sign/-/browserify-sign-4.0.4.tgz#aa4eb68e5d7b658baa6bf6a57e630cbd7a93d298"
@@ -2283,6 +2316,29 @@ bser@^2.0.0:
   dependencies:
     node-int64 "^0.4.0"
 
+buffer-alloc-unsafe@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
+  integrity sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==
+
+buffer-alloc@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc/-/buffer-alloc-1.2.0.tgz#890dd90d923a873e08e10e5fd51a57e5b7cce0ec"
+  integrity sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==
+  dependencies:
+    buffer-alloc-unsafe "^1.1.0"
+    buffer-fill "^1.0.0"
+
+buffer-crc32@~0.2.3:
+  version "0.2.13"
+  resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
+  integrity sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI=
+
+buffer-fill@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
+  integrity sha1-+PeLdniYiO858gXNY39o5wISKyw=
+
 buffer-from@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
@@ -2312,6 +2368,14 @@ buffer@^4.3.0:
     ieee754 "^1.1.4"
     isarray "^1.0.0"
 
+buffer@^5.0.5, buffer@^5.2.1:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.2.1.tgz#dd57fa0f109ac59c602479044dca7b8b3d0b71d6"
+  integrity sha512-c+Ko0loDaFfuPWiL02ls9Xd3GO3cPVmUobQ6t3rXNUk304u6hGq+8N/kFi+QEIKhzK3uwolVhLzszmfLmMLnqg==
+  dependencies:
+    base64-js "^1.0.2"
+    ieee754 "^1.1.4"
+
 builtin-status-codes@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
@@ -2362,6 +2426,19 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
+cacheable-request@^6.0.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/cacheable-request/-/cacheable-request-6.1.0.tgz#20ffb8bd162ba4be11e9567d823db651052ca912"
+  integrity sha512-Oj3cAGPCqOZX7Rz64Uny2GYAZNliQSqfbePrgAQ1wKAihYmCUnraBtJtKcGR4xz7wF+LoJC+ssFZvv5BgF9Igg==
+  dependencies:
+    clone-response "^1.0.2"
+    get-stream "^5.1.0"
+    http-cache-semantics "^4.0.0"
+    keyv "^3.0.0"
+    lowercase-keys "^2.0.0"
+    normalize-url "^4.1.0"
+    responselike "^1.0.2"
+
 call-me-maybe@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/call-me-maybe/-/call-me-maybe-1.0.1.tgz#26d208ea89e37b5cbde60250a15f031c16a4d66b"
@@ -2594,6 +2671,13 @@ clone-deep@^2.0.1:
     kind-of "^6.0.0"
     shallow-clone "^1.0.0"
 
+clone-response@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/clone-response/-/clone-response-1.0.2.tgz#d1dc973920314df67fbeb94223b4ee350239e96b"
+  integrity sha1-0dyXOSAxTfZ/vrlCI7TuNQI56Ws=
+  dependencies:
+    mimic-response "^1.0.0"
+
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
@@ -2666,10 +2750,10 @@ comma-separated-tokens@^1.0.0:
   resolved "https://registry.yarnpkg.com/comma-separated-tokens/-/comma-separated-tokens-1.0.7.tgz#419cd7fb3258b1ed838dc0953167a25e152f5b59"
   integrity sha512-Jrx3xsP4pPv4AwJUDWY9wOXGtwPXARej6Xd99h4TUGotmf8APuquKMpK+dnD3UgyxK7OEWaisjZz+3b5jtL6xQ==
 
-commander@2.11.0:
-  version "2.11.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
-  integrity sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ==
+commander@2.15.1:
+  version "2.15.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
+  integrity sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==
 
 commander@2.17.x:
   version "2.17.1"
@@ -2686,6 +2770,13 @@ commander@~2.19.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
   integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
 
+commander@~2.8.1:
+  version "2.8.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.8.1.tgz#06be367febfda0c330aa1e2a072d3dc9762425d4"
+  integrity sha1-Br42f+v9oMMwqh4qBy09yXYkJdQ=
+  dependencies:
+    graceful-readlink ">= 1.0.0"
+
 common-tags@^1.4.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/common-tags/-/common-tags-1.8.0.tgz#8e3153e542d4a39e9b10554434afaaf98956a937"
@@ -2853,6 +2944,14 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
   integrity sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=
 
+cors@^2.8.1:
+  version "2.8.5"
+  resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.5.tgz#eac11da51592dd86b9f06f6e7ac293b3df875d29"
+  integrity sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==
+  dependencies:
+    object-assign "^4"
+    vary "^1"
+
 cosmiconfig@^5.0.0, cosmiconfig@^5.0.5, cosmiconfig@^5.2.0:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.2.1.tgz#040f726809c591e77a17c0a3626ca45b4f168b1a"
@@ -2914,7 +3013,7 @@ cross-spawn@^5.0.1:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
-crypto-browserify@^3.11.0:
+crypto-browserify@3.12.0, crypto-browserify@^3.11.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
   integrity sha512-fz4spIh+znjO2VjL+IdhEpRJ3YN6sMzITSBijk6FK2UvTqruSQW+/cCZTSNsMiZNvUeq0CqurF+dAbyiGOY6Wg==
@@ -3244,13 +3343,66 @@ decode-uri-component@^0.2.0:
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
   integrity sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=
 
-decompress-response@^3.3.0:
+decompress-response@^3.2.0, decompress-response@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-3.3.0.tgz#80a4dd323748384bfa248083622aedec982adff3"
   integrity sha1-gKTdMjdIOEv6JICDYirt7Jgq3/M=
   dependencies:
     mimic-response "^1.0.0"
 
+decompress-tar@^4.0.0, decompress-tar@^4.1.0, decompress-tar@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/decompress-tar/-/decompress-tar-4.1.1.tgz#718cbd3fcb16209716e70a26b84e7ba4592e5af1"
+  integrity sha512-JdJMaCrGpB5fESVyxwpCx4Jdj2AagLmv3y58Qy4GE6HMVjWz1FeVQk1Ct4Kye7PftcdOo/7U7UKzYBJgqnGeUQ==
+  dependencies:
+    file-type "^5.2.0"
+    is-stream "^1.1.0"
+    tar-stream "^1.5.2"
+
+decompress-tarbz2@^4.0.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/decompress-tarbz2/-/decompress-tarbz2-4.1.1.tgz#3082a5b880ea4043816349f378b56c516be1a39b"
+  integrity sha512-s88xLzf1r81ICXLAVQVzaN6ZmX4A6U4z2nMbOwobxkLoIIfjVMBg7TeguTUXkKeXni795B6y5rnvDw7rxhAq9A==
+  dependencies:
+    decompress-tar "^4.1.0"
+    file-type "^6.1.0"
+    is-stream "^1.1.0"
+    seek-bzip "^1.0.5"
+    unbzip2-stream "^1.0.9"
+
+decompress-targz@^4.0.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/decompress-targz/-/decompress-targz-4.1.1.tgz#c09bc35c4d11f3de09f2d2da53e9de23e7ce1eee"
+  integrity sha512-4z81Znfr6chWnRDNfFNqLwPvm4db3WuZkqV+UgXQzSngG3CEKdBkw5jrv3axjjL96glyiiKjsxJG3X6WBZwX3w==
+  dependencies:
+    decompress-tar "^4.1.1"
+    file-type "^5.2.0"
+    is-stream "^1.1.0"
+
+decompress-unzip@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/decompress-unzip/-/decompress-unzip-4.0.1.tgz#deaaccdfd14aeaf85578f733ae8210f9b4848f69"
+  integrity sha1-3qrM39FK6vhVePczroIQ+bSEj2k=
+  dependencies:
+    file-type "^3.8.0"
+    get-stream "^2.2.0"
+    pify "^2.3.0"
+    yauzl "^2.4.2"
+
+decompress@^4.0.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/decompress/-/decompress-4.2.0.tgz#7aedd85427e5a92dacfe55674a7c505e96d01f9d"
+  integrity sha1-eu3YVCflqS2s/lVnSnxQXpbQH50=
+  dependencies:
+    decompress-tar "^4.0.0"
+    decompress-tarbz2 "^4.0.0"
+    decompress-targz "^4.0.0"
+    decompress-unzip "^4.0.1"
+    graceful-fs "^4.1.10"
+    make-dir "^1.0.0"
+    pify "^2.3.0"
+    strip-dirs "^2.0.0"
+
 deep-equal@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-1.0.1.tgz#f5d260292b660e084eff4cdbc9f08ad3247448b5"
@@ -3286,6 +3438,11 @@ default-require-extensions@^1.0.0:
   dependencies:
     strip-bom "^2.0.0"
 
+defer-to-connect@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/defer-to-connect/-/defer-to-connect-1.0.2.tgz#4bae758a314b034ae33902b5aac25a8dd6a8633e"
+  integrity sha512-k09hcQcTDY+cwgiwa6PYKLm3jlagNzQ+RSvhjzESOGOx+MNOuXkxTfEvPrO1IOQ81tArCFYQgi631clB70RpQw==
+
 define-properties@^1.1.2, define-properties@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.3.tgz#cf88da6cbee26fe6db7094f61d870cbd84cee9f1"
@@ -3385,12 +3542,7 @@ detect-port-alt@1.1.6:
     address "^1.0.1"
     debug "^2.6.0"
 
-diff@3.3.1:
-  version "3.3.1"
-  resolved "https://registry.yarnpkg.com/diff/-/diff-3.3.1.tgz#aa8567a6eed03c531fc89d3f711cd0e5259dec75"
-  integrity sha512-MKPHZDMB0o6yHyDryUOScqZibp914ksXwAMYMTHj6KO8UeKsRYNJD3oNCKjTqZon+V488P7N/HzXF8t7ZR95ww==
-
-diff@^3.2.0:
+diff@3.5.0, diff@^3.2.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
   integrity sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==
@@ -3540,6 +3692,11 @@ drbg.js@^1.0.1:
     create-hash "^1.1.2"
     create-hmac "^1.1.4"
 
+duplexer3@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/duplexer3/-/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"
+  integrity sha1-7gHdHKwO08vH/b6jfcCo8c4ALOI=
+
 duplexer@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
@@ -3910,6 +4067,15 @@ eth-ens-namehash@2.0.8:
     idna-uts46-hx "^2.3.1"
     js-sha3 "^0.5.7"
 
+eth-lib@0.2.7:
+  version "0.2.7"
+  resolved "https://registry.yarnpkg.com/eth-lib/-/eth-lib-0.2.7.tgz#2f93f17b1e23aec3759cd4a3fe20c1286a3fc1ca"
+  integrity sha1-L5Pxex4jrsN1nNSj/iDBKGo/wco=
+  dependencies:
+    bn.js "^4.11.6"
+    elliptic "^6.4.0"
+    xhr-request-promise "^0.1.2"
+
 eth-lib@0.2.8:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/eth-lib/-/eth-lib-0.2.8.tgz#b194058bef4b220ad12ea497431d6cb6aa0623c8"
@@ -3919,6 +4085,19 @@ eth-lib@0.2.8:
     elliptic "^6.4.0"
     xhr-request-promise "^0.1.2"
 
+eth-lib@^0.1.26:
+  version "0.1.27"
+  resolved "https://registry.yarnpkg.com/eth-lib/-/eth-lib-0.1.27.tgz#f0b0fd144f865d2d6bf8257a40004f2e75ca1dd6"
+  integrity sha512-B8czsfkJYzn2UIEMwjc7Mbj+Cy72V+/OXH/tb44LV8jhrjizQJJ325xMOMyk3+ETa6r6oi0jsUY14+om8mQMWA==
+  dependencies:
+    bn.js "^4.11.6"
+    elliptic "^6.4.0"
+    keccakjs "^0.2.1"
+    nano-json-stream-parser "^0.1.2"
+    servify "^0.1.12"
+    ws "^3.0.0"
+    xhr-request-promise "^0.1.2"
+
 ethereum-common@^0.0.18:
   version "0.0.18"
   resolved "https://registry.yarnpkg.com/ethereum-common/-/ethereum-common-0.0.18.tgz#2fdc3576f232903358976eb39da783213ff9523f"
@@ -3945,6 +4124,22 @@ ethereumjs-util@^5.0.0:
     safe-buffer "^5.1.1"
     secp256k1 "^3.0.1"
 
+ethers@4.0.0-beta.3:
+  version "4.0.0-beta.3"
+  resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.0-beta.3.tgz#15bef14e57e94ecbeb7f9b39dd0a4bd435bc9066"
+  integrity sha512-YYPogooSknTwvHg3+Mv71gM/3Wcrx+ZpCzarBj3mqs9njjRkrOo2/eufzhHloOCo3JSoNI4TQJJ6yU5ABm3Uog==
+  dependencies:
+    "@types/node" "^10.3.2"
+    aes-js "3.0.0"
+    bn.js "^4.4.0"
+    elliptic "6.3.3"
+    hash.js "1.1.3"
+    js-sha3 "0.5.7"
+    scrypt-js "2.0.3"
+    setimmediate "1.0.4"
+    uuid "2.0.1"
+    xmlhttprequest "1.8.0"
+
 ethers@^4.0.27:
   version "4.0.30"
   resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.30.tgz#140653fd08adf2834bb2f3aceefa10d04205b47d"
@@ -3961,7 +4156,7 @@ ethers@^4.0.27:
     uuid "2.0.1"
     xmlhttprequest "1.8.0"
 
-ethjs-unit@^0.1.6:
+ethjs-unit@0.1.6, ethjs-unit@^0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/ethjs-unit/-/ethjs-unit-0.1.6.tgz#c665921e476e87bce2a9d588a6fe0405b2c41699"
   integrity sha1-xmWSHkduh7ziqdWIpv4EBbLEFpk=
@@ -3982,7 +4177,7 @@ eventemitter3@3.1.0:
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
   integrity sha512-ivIvhpq/Y0uSjcHDcOIccjmYjGLcP09MFGE7ysAwkAvkXfpZlC985pH2/ui64DKazbTW/4kN3yqozUxlXzI6cA==
 
-eventemitter3@^3.0.0, eventemitter3@^3.1.0:
+eventemitter3@3.1.2, eventemitter3@^3.0.0, eventemitter3@^3.1.0:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.2.tgz#2d3d48f9c346698fce83a85d7d664e98535df6e7"
   integrity sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==
@@ -4097,7 +4292,7 @@ expect@^23.6.0:
     jest-message-util "^23.4.0"
     jest-regex-util "^23.3.0"
 
-express@^4.16.2:
+express@^4.14.0, express@^4.16.2:
   version "4.17.1"
   resolved "https://registry.yarnpkg.com/express/-/express-4.17.1.tgz#4491fc38605cf51f8629d39c2b5d026f98a4c134"
   integrity sha512-mHJ9O79RqluphRrcw2X/GTh3k9tVv8YcoyY4Kkh4WDMUYKRZUq0h1o0w2rrrxBqM7VoeUVqgb27xlEMXTnYt4g==
@@ -4259,6 +4454,13 @@ fbjs@^0.8.1:
     setimmediate "^1.0.5"
     ua-parser-js "^0.7.18"
 
+fd-slicer@~1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.1.0.tgz#25c7c89cb1f9077f8891bbe61d8f390eae256f1e"
+  integrity sha1-JcfInLH5B3+IkbvmHY85Dq4lbx4=
+  dependencies:
+    pend "~1.2.0"
+
 figgy-pudding@^3.5.1:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.1.tgz#862470112901c727a0e495a80744bd5baa1d6790"
@@ -4287,6 +4489,21 @@ file-loader@2.0.0:
     loader-utils "^1.0.2"
     schema-utils "^1.0.0"
 
+file-type@^3.8.0:
+  version "3.9.0"
+  resolved "https://registry.yarnpkg.com/file-type/-/file-type-3.9.0.tgz#257a078384d1db8087bc449d107d52a52672b9e9"
+  integrity sha1-JXoHg4TR24CHvESdEH1SpSZyuek=
+
+file-type@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/file-type/-/file-type-5.2.0.tgz#2ddbea7c73ffe36368dfae49dc338c058c2b8ad6"
+  integrity sha1-LdvqfHP/42No365J3DOMBYwritY=
+
+file-type@^6.1.0:
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/file-type/-/file-type-6.2.0.tgz#e50cd75d356ffed4e306dc4f5bcf52a79903a919"
+  integrity sha512-YPcTBDV+2Tm0VqjybVd32MHdlEGAtuxS3VAYsumFokDSMG+ROT5wawGlnHDoz7bfMcMDt9hxuXvXwoKUx2fkOg==
+
 file-uri-to-path@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
@@ -4504,6 +4721,11 @@ from2@^2.1.0:
     inherits "^2.0.1"
     readable-stream "^2.0.0"
 
+fs-constants@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
+  integrity sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==
+
 fs-extra@7.0.1, fs-extra@^7.0.0:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-7.0.1.tgz#4f189c44aa123b895f722804f55ea23eadc348e9"
@@ -4594,18 +4816,33 @@ get-own-enumerable-property-symbols@^3.0.0:
   resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-3.0.0.tgz#b877b49a5c16aefac3655f2ed2ea5b684df8d203"
   integrity sha512-CIJYJC4GGF06TakLg8z4GQKvDsx9EMspVxOYih7LerEL/WosUnFIww45CGfxfeKHqlg3twgUrYRT1O3WQqjGCg==
 
+get-stream@^2.2.0:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-2.3.1.tgz#5f38f93f346009666ee0150a054167f91bdd95de"
+  integrity sha1-Xzj5PzRgCWZu4BUKBUFn+Rvdld4=
+  dependencies:
+    object-assign "^4.0.1"
+    pinkie-promise "^2.0.0"
+
 get-stream@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
   integrity sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=
 
-get-stream@^4.0.0:
+get-stream@^4.0.0, get-stream@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
   integrity sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==
   dependencies:
     pump "^3.0.0"
 
+get-stream@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-5.1.0.tgz#01203cdc92597f9b909067c3e656cc1f4d3c4dc9"
+  integrity sha512-EXr1FOzrzTfGeL0gQdeFEvOMm2mzMOglyiOXSTpPC+iAjAKftbr3jpCMWynogwYnM+eSj9sHGc6wjIcDvYiygw==
+  dependencies:
+    pump "^3.0.0"
+
 get-value@^2.0.3, get-value@^2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/get-value/-/get-value-2.0.6.tgz#dc15ca1c672387ca76bd37ac0a395ba2042a2c28"
@@ -4728,15 +4965,62 @@ globby@^6.1.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
+got@9.6.0:
+  version "9.6.0"
+  resolved "https://registry.yarnpkg.com/got/-/got-9.6.0.tgz#edf45e7d67f99545705de1f7bbeeeb121765ed85"
+  integrity sha512-R7eWptXuGYxwijs0eV+v3o6+XH1IqVK8dJOEecQfTmkncw9AV4dcw/Dhxi8MdlqPthxxpZyizMzyg8RTmEsG+Q==
+  dependencies:
+    "@sindresorhus/is" "^0.14.0"
+    "@szmarczak/http-timer" "^1.1.2"
+    cacheable-request "^6.0.0"
+    decompress-response "^3.3.0"
+    duplexer3 "^0.1.4"
+    get-stream "^4.1.0"
+    lowercase-keys "^1.0.1"
+    mimic-response "^1.0.1"
+    p-cancelable "^1.0.0"
+    to-readable-stream "^1.0.0"
+    url-parse-lax "^3.0.0"
+
+got@^7.1.0:
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/got/-/got-7.1.0.tgz#05450fd84094e6bbea56f451a43a9c289166385a"
+  integrity sha512-Y5WMo7xKKq1muPsxD+KmrR8DH5auG7fBdDVueZwETwV6VytKyU9OX/ddpq2/1hp1vIPvVb4T81dKQz3BivkNLw==
+  dependencies:
+    decompress-response "^3.2.0"
+    duplexer3 "^0.1.4"
+    get-stream "^3.0.0"
+    is-plain-obj "^1.1.0"
+    is-retry-allowed "^1.0.0"
+    is-stream "^1.0.0"
+    isurl "^1.0.0-alpha5"
+    lowercase-keys "^1.0.0"
+    p-cancelable "^0.3.0"
+    p-timeout "^1.1.1"
+    safe-buffer "^5.0.1"
+    timed-out "^4.0.0"
+    url-parse-lax "^1.0.0"
+    url-to-options "^1.0.1"
+
+graceful-fs@^4.1.10:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.0.tgz#8d8fdc73977cb04104721cb53666c1ca64cd328b"
+  integrity sha512-jpSvDPV4Cq/bgtpndIWbI5hmYxhQGHPC4d4cqBPb4DLniCfhJokdXhwhaDuLBGLQdvvRum/UiX6ECVIPvDXqdg==
+
 graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   version "4.1.15"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
   integrity sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==
 
-growl@1.10.3:
-  version "1.10.3"
-  resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.3.tgz#1926ba90cf3edfe2adb4927f5880bc22c66c790f"
-  integrity sha512-hKlsbA5Vu3xsh1Cg3J7jSmX/WaW6A5oBeqzM88oNbCRQFz+zUaXm6yxS4RVytp1scBoJzSYl4YAEOQIt6O8V1Q==
+"graceful-readlink@>= 1.0.0":
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/graceful-readlink/-/graceful-readlink-1.0.1.tgz#4cafad76bc62f02fa039b2f94e9a3dd3a391a725"
+  integrity sha1-TK+tdrxi8C+gObL5Tpo906ORpyU=
+
+growl@1.10.5:
+  version "1.10.5"
+  resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
+  integrity sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==
 
 growly@^1.3.0:
   version "1.3.0"
@@ -4802,21 +5086,28 @@ has-flag@^1.0.0:
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
   integrity sha1-nZ55MWXOAXoA8AQYxD+UKnsdEfo=
 
-has-flag@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
-  integrity sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=
-
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
   integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
 
+has-symbol-support-x@^1.4.1:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/has-symbol-support-x/-/has-symbol-support-x-1.4.2.tgz#1409f98bc00247da45da67cee0a36f282ff26455"
+  integrity sha512-3ToOva++HaW+eCpgqZrCfN51IPB+7bJNVT6CUATzueB5Heb8o6Nam0V3HG5dlDvZU1Gn5QLcbahiKw/XVk5JJw==
+
 has-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.0.tgz#ba1a8f1af2a0fc39650f5c850367704122063b44"
   integrity sha1-uhqPGvKg/DllD1yFA2dwQSIGO0Q=
 
+has-to-string-tag-x@^1.2.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/has-to-string-tag-x/-/has-to-string-tag-x-1.4.1.tgz#a045ab383d7b4b2012a00148ab0aa5f290044d4d"
+  integrity sha512-vdbKfmw+3LoOYVr+mtxHaX5a96+0f3DljYd8JOqvOLsf5mw2Otda2qCDT9qRqLAhrjyQ0h7ual5nOiASpsGNFw==
+  dependencies:
+    has-symbol-support-x "^1.4.1"
+
 has-unicode@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
@@ -5056,6 +5347,11 @@ htmlparser2@^3.3.0:
     inherits "^2.0.1"
     readable-stream "^3.1.1"
 
+http-cache-semantics@^4.0.0:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/http-cache-semantics/-/http-cache-semantics-4.0.3.tgz#495704773277eeef6e43f9ab2c2c7d259dda25c5"
+  integrity sha512-TcIMG3qeVLgDr1TEd2XvHaTnMPwYQUQMIBLy+5pLSDKYFc7UIqj39w8EGzZkaxoLv/l2K8HaI0t5AVA+YYgUew==
+
 http-deceiver@^1.2.7:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/http-deceiver/-/http-deceiver-1.2.7.tgz#fa7168944ab9a519d337cb0bec7284dc3e723d87"
@@ -5082,6 +5378,11 @@ http-errors@~1.6.2:
     setprototypeof "1.1.0"
     statuses ">= 1.4.0 < 2"
 
+http-https@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/http-https/-/http-https-1.0.0.tgz#2f908dd5f1db4068c058cd6e6d4ce392c913389b"
+  integrity sha1-L5CN1fHbQGjAWM1ubUzjkskTOJs=
+
 "http-parser-js@>=0.4.0 <0.4.11":
   version "0.4.10"
   resolved "https://registry.yarnpkg.com/http-parser-js/-/http-parser-js-0.4.10.tgz#92c9c1374c35085f75db359ec56cc257cbb93fa4"
@@ -5268,16 +5569,21 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.1, inherits@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
-  integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
+inherits@2:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+  integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
 
 inherits@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
   integrity sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE=
 
+inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.1, inherits@~2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+  integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
+
 ini@^1.3.5, ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
@@ -5567,6 +5873,11 @@ is-in-browser@^1.0.2, is-in-browser@^1.1.3:
   resolved "https://registry.yarnpkg.com/is-in-browser/-/is-in-browser-1.1.3.tgz#56ff4db683a078c6082eb95dad7dc62e1d04f835"
   integrity sha1-Vv9NtoOgeMYILrldrX3GLh0E+DU=
 
+is-natural-number@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/is-natural-number/-/is-natural-number-4.0.1.tgz#ab9d76e1db4ced51e35de0c72ebecf09f734cde8"
+  integrity sha1-q5124dtM7VHjXeDHLr7PCfc0zeg=
+
 is-number@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
@@ -5591,6 +5902,11 @@ is-obj@^1.0.0, is-obj@^1.0.1:
   resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
   integrity sha1-PkcprB9f3gJc19g6iW2rn09n2w8=
 
+is-object@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-object/-/is-object-1.0.1.tgz#8952688c5ec2ffd6b03ecc85e769e02903083470"
+  integrity sha1-iVJojF7C/9awPsyF52ngKQMINHA=
+
 is-path-cwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-1.0.0.tgz#d225ec23132e89edd38fda767472e62e65f1106d"
@@ -5654,12 +5970,17 @@ is-resolvable@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
   integrity sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==
 
+is-retry-allowed@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-retry-allowed/-/is-retry-allowed-1.1.0.tgz#11a060568b67339444033d0125a61a20d564fb34"
+  integrity sha1-EaBgVotnM5REAz0BJaYaINVk+zQ=
+
 is-root@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-root/-/is-root-2.0.0.tgz#838d1e82318144e5a6f77819d90207645acc7019"
   integrity sha512-F/pJIk8QD6OX5DNhRB7hWamLsUilmkDGho48KbgZ6xg/lmAZXHxzXQ91jzB3yRSw5kdQGGGc4yz8HYhTYIMWPg==
 
-is-stream@^1.0.1, is-stream@^1.1.0:
+is-stream@^1.0.0, is-stream@^1.0.1, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
   integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
@@ -5815,6 +6136,14 @@ istanbul-reports@^1.5.1:
   dependencies:
     handlebars "^4.0.3"
 
+isurl@^1.0.0-alpha5:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/isurl/-/isurl-1.0.0.tgz#b27f4f49f3cdaa3ea44a0a5b7f3462e6edc39d67"
+  integrity sha512-1P/yWsxPlDtn7QeRD+ULKQPaIaN6yF368GZ2vDfv0AL0NwpStafjWCDDdn0k8wgFMWpVAqG7oJhxHnlud42i9w==
+  dependencies:
+    has-to-string-tag-x "^1.2.0"
+    is-object "^1.0.1"
+
 jest-changed-files@^23.4.2:
   version "23.4.2"
   resolved "https://registry.yarnpkg.com/jest-changed-files/-/jest-changed-files-23.4.2.tgz#1eed688370cd5eebafe4ae93d34bb3b64968fe83"
@@ -6168,6 +6497,11 @@ js-sha3@0.5.7, js-sha3@^0.5.7:
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.5.7.tgz#0d4ffd8002d5333aabaf4a23eed2f6374c9f28e7"
   integrity sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc=
 
+js-sha3@^0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.6.1.tgz#5b89f77a7477679877f58c4a075240934b1f95c0"
+  integrity sha1-W4n3enR3Z5h39YxKB1JAk0sflcA=
+
 "js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -6238,6 +6572,11 @@ jsesc@~0.5.0:
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
   integrity sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=
 
+json-buffer@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/json-buffer/-/json-buffer-3.0.0.tgz#5b1f397afc75d677bde8bcfc0e47e1f9a3d9a898"
+  integrity sha1-Wx85evx11ne96Lz8Dkfh+aPZqJg=
+
 json-parse-better-errors@^1.0.1, json-parse-better-errors@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
@@ -6378,6 +6717,21 @@ keccak@^1.0.2:
     nan "^2.2.1"
     safe-buffer "^5.1.0"
 
+keccakjs@^0.2.1:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/keccakjs/-/keccakjs-0.2.3.tgz#5e4e969ce39689a3861f445d7752ee3477f9fe72"
+  integrity sha512-BjLkNDcfaZ6l8HBG9tH0tpmDv3sS2mA7FNQxFHpCdzP3Gb2MVruXBSuoM66SnVxKJpAr5dKGdkHD+bDokt8fTg==
+  dependencies:
+    browserify-sha3 "^0.0.4"
+    sha3 "^1.2.2"
+
+keyv@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/keyv/-/keyv-3.1.0.tgz#ecc228486f69991e49e9476485a5be1e8fc5c4d9"
+  integrity sha512-9ykJ/46SN/9KPM/sichzQ7OvXyGDYKGTaDlKMGCAlg2UK8KRy4jb0d8sFc+0Tt0YYnThq8X2RZgCg74RPxgcVA==
+  dependencies:
+    json-buffer "3.0.0"
+
 killable@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/killable/-/killable-1.0.1.tgz#4c8ce441187a061c7474fb87ca08e2a638194892"
@@ -6595,6 +6949,16 @@ lower-case@^1.1.1:
   resolved "https://registry.yarnpkg.com/lower-case/-/lower-case-1.1.4.tgz#9a2cabd1b9e8e0ae993a4bf7d5875c39c42e8eac"
   integrity sha1-miyr0bno4K6ZOkv31YdcOcQujqw=
 
+lowercase-keys@^1.0.0, lowercase-keys@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-1.0.1.tgz#6f9e30b47084d971a7c820ff15a6c5167b74c26f"
+  integrity sha512-G2Lj61tXDnVFFOi8VZds+SoQjtQC3dgokKdDG2mTm1tx4m50NUHBOZSBwQQHyy0V12A0JTG4icfZQH+xPyh8VA==
+
+lowercase-keys@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-2.0.0.tgz#2603e78b7b4b0006cbca2fbcc8a3202558ac9479"
+  integrity sha512-tqNXrS78oMOE73NMxK4EMLQsQowWf8jKooH9g7xPavRT706R6bkQJ6DY2Te7QukaZsulxa30wQ7bk0pm4XiHmA==
+
 lru-cache@^4.0.1:
   version "4.1.5"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.5.tgz#8bbe50ea85bed59bc9e33dcab8235ee9bcf443cd"
@@ -6610,6 +6974,13 @@ lru-cache@^5.1.1:
   dependencies:
     yallist "^3.0.2"
 
+make-dir@^1.0.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.3.0.tgz#79c1033b80515bd6d24ec9933e860ca75ee27f0c"
+  integrity sha512-2w31R7SJtieJJnQtGc7RVL2StM2vGYVfqUOvUDxH6bC6aJTxPxTF0GnIgCyu7tjockiUWAYQRbxa7vKn34s5sQ==
+  dependencies:
+    pify "^3.0.0"
+
 make-dir@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-2.1.0.tgz#5f0310e18b8be898cc07009295a30ae41e91e6f5"
@@ -6779,7 +7150,7 @@ mime-db@1.40.0, "mime-db@>= 1.40.0 < 2":
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.40.0.tgz#a65057e998db090f732a68f6c276d387d4126c32"
   integrity sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==
 
-mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.19, mime-types@~2.1.24:
+mime-types@^2.1.12, mime-types@^2.1.16, mime-types@~2.1.17, mime-types@~2.1.19, mime-types@~2.1.24:
   version "2.1.24"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.24.tgz#b6f8d0b3e951efb77dedeca194cff6d16f676f81"
   integrity sha512-WaFHS3MCl5fapm3oLxU4eYDw77IQM2ACcxQ9RIxfaC3ooc6PFuBMGZZsYpvoXS5D5QTWPieo1jjLdAm3TBP3cQ==
@@ -6806,7 +7177,7 @@ mimic-fn@^2.0.0:
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
   integrity sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==
 
-mimic-response@^1.0.0:
+mimic-response@^1.0.0, mimic-response@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.1.tgz#4923538878eef42063cb8a3e3b0798781487ab1b"
   integrity sha512-j5EctnkH7amfV/q5Hgmoal1g2QHFJRraOtmx0JpIqkxhBhI/lJSl1nMpQ45hVarwNETOoWEimndZ4QK0RHxuxQ==
@@ -6915,28 +7286,41 @@ mixin-object@^2.0.1:
     for-in "^0.1.3"
     is-extendable "^0.1.1"
 
-mkdirp@0.5.1, mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
+mkdirp-promise@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/mkdirp-promise/-/mkdirp-promise-5.0.1.tgz#e9b8f68e552c68a9c1713b84883f7a1dd039b8a1"
+  integrity sha1-6bj2jlUsaKnBcTuEiD96HdA5uKE=
+  dependencies:
+    mkdirp "*"
+
+mkdirp@*, mkdirp@0.5.1, mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
   dependencies:
     minimist "0.0.8"
 
-mocha@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-4.1.0.tgz#7d86cfbcf35cb829e2754c32e17355ec05338794"
-  integrity sha512-0RVnjg1HJsXY2YFDoTNzcc1NKhYuXKRrBAG2gDygmJJA136Cs2QlRliZG1mA0ap7cuaT30mw16luAeln+4RiNA==
+mocha@5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.2.0.tgz#6d8ae508f59167f940f2b5b3c4a612ae50c90ae6"
+  integrity sha512-2IUgKDhc3J7Uug+FxMXuqIyYzH7gJjXECKe/w43IGgQHTSj3InJi+yAA7T24L9bQMRKiUEHxEX37G5JpVUGLcQ==
   dependencies:
-    browser-stdout "1.3.0"
-    commander "2.11.0"
+    browser-stdout "1.3.1"
+    commander "2.15.1"
     debug "3.1.0"
-    diff "3.3.1"
+    diff "3.5.0"
     escape-string-regexp "1.0.5"
     glob "7.1.2"
-    growl "1.10.3"
+    growl "1.10.5"
     he "1.1.1"
+    minimatch "3.0.4"
     mkdirp "0.5.1"
-    supports-color "4.4.0"
+    supports-color "5.4.0"
+
+mock-fs@^4.1.0:
+  version "4.10.1"
+  resolved "https://registry.yarnpkg.com/mock-fs/-/mock-fs-4.10.1.tgz#50a07a20114a6cdb119f35762f61f46266a1e323"
+  integrity sha512-w22rOL5ZYu6HbUehB5deurghGM0hS/xBVyHMGKOuQctkk93J9z9VEOhDsiWrXOprVNQpP9uzGKdl8v9mFspKuw==
 
 moment@^2.24.0:
   version "2.24.0"
@@ -6988,11 +7372,21 @@ mute-stream@0.0.7:
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
   integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
 
-nan@^2.0.8, nan@^2.11.0, nan@^2.12.1, nan@^2.14.0, nan@^2.2.1, nan@^2.9.2:
+nan@2.13.2:
+  version "2.13.2"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
+  integrity sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==
+
+nan@^2.0.8, nan@^2.11.0, nan@^2.12.1, nan@^2.14.0, nan@^2.2.1, nan@^2.3.3, nan@^2.9.2:
   version "2.14.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
   integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
 
+nano-json-stream-parser@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/nano-json-stream-parser/-/nano-json-stream-parser-0.1.2.tgz#0cc8f6d0e2b622b479c40d499c46d64b755c6f5f"
+  integrity sha1-DMj20OK2IrR5xA1JnEbWS3Vcb18=
+
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
@@ -7198,6 +7592,11 @@ normalize-url@^3.0.0:
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-3.3.0.tgz#b2e1c4dc4f7c6d57743df733a4f5978d18650559"
   integrity sha512-U+JJi7duF1o+u2pynbp2zXDW2/PADgC30f0GsHZtRh+HOcXHnw137TrNlyxxRvWW5fjKd3bcLHPxofWuCjaeZg==
 
+normalize-url@^4.1.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-4.3.0.tgz#9c49e10fc1876aeb76dba88bf1b2b5d9fa57b2ee"
+  integrity sha512-0NLtR71o4k6GLP+mr6Ty34c5GA6CMoEsncKJxvQd8NzPxaHRJNnb5gZE8R1XF4CPIS7QPHLJ74IFszwtNVAHVQ==
+
 npm-bundled@^1.0.1:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/npm-bundled/-/npm-bundled-1.0.6.tgz#e7ba9aadcef962bb61248f91721cd932b3fe6bdd"
@@ -7263,7 +7662,7 @@ oauth-sign@~0.9.0:
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.9.0.tgz#47a7b016baa68b5fa0ecf3dee08a85c679ac6455"
   integrity sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==
 
-object-assign@4.1.1, object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
+object-assign@4.1.1, object-assign@^4, object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
   integrity sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=
@@ -7347,6 +7746,13 @@ object.values@^1.1.0:
     function-bind "^1.1.1"
     has "^1.0.3"
 
+oboe@2.1.4:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/oboe/-/oboe-2.1.4.tgz#20c88cdb0c15371bb04119257d4fdd34b0aa49f6"
+  integrity sha1-IMiM2wwVNxuwQRklfU/dNLCqSfY=
+  dependencies:
+    http-https "^1.0.0"
+
 obuf@^1.0.0, obuf@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/obuf/-/obuf-1.1.2.tgz#09bea3343d41859ebd446292d11c9d4db619084e"
@@ -7473,6 +7879,16 @@ osenv@^0.1.4:
     os-homedir "^1.0.0"
     os-tmpdir "^1.0.0"
 
+p-cancelable@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-0.3.0.tgz#b9e123800bcebb7ac13a479be195b507b98d30fa"
+  integrity sha512-RVbZPLso8+jFeq1MfNvgXtCRED2raz/dKpacfTNxsx6pLEpEomM7gah6VeHSYV3+vo0OAi4MkArtQcWWXuQoyw==
+
+p-cancelable@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-1.1.0.tgz#d078d15a3af409220c886f1d9a0ca2e441ab26cc"
+  integrity sha512-s73XxOZ4zpt1edZYZzvhqFa6uvQc1vwUa0K0BdtIZgQMAJj9IbebH+JkgKZc9h+B05PKHLOTl4ajG1BmNrVZlw==
+
 p-defer@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-defer/-/p-defer-1.0.0.tgz#9f6eb182f6c9aa8cd743004a7d4f96b196b0fb0c"
@@ -7521,6 +7937,13 @@ p-map@^1.1.1:
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
   integrity sha512-r6zKACMNhjPJMTl8KcFH4li//gkrXWfbD6feV8l6doRHlzljFWGJ2AP6iKaCJXyZmAUMOPtvbW7EXkbWO/pLEA==
 
+p-timeout@^1.1.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/p-timeout/-/p-timeout-1.2.1.tgz#5eb3b353b7fce99f101a1038880bb054ebbea386"
+  integrity sha1-XrOzU7f86Z8QGhA4iAuwVOu+o4Y=
+  dependencies:
+    p-finally "^1.0.0"
+
 p-try@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
@@ -7712,12 +8135,17 @@ pbkdf2@^3.0.17, pbkdf2@^3.0.3:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
+pend@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/pend/-/pend-1.2.0.tgz#7a57eb550a6783f9115331fcf4663d5c8e007a50"
+  integrity sha1-elfrVQpng/kRUzH89GY9XI4AelA=
+
 performance-now@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
   integrity sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=
 
-pify@^2.0.0:
+pify@^2.0.0, pify@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
   integrity sha1-7RQaasBDqEnqWISY59yosVMw6Qw=
@@ -8441,6 +8869,16 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
 
+prepend-http@^1.0.1:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
+  integrity sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw=
+
+prepend-http@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
+  integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
+
 preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
@@ -8685,6 +9123,11 @@ randomfill@^1.0.3:
     randombytes "^2.0.5"
     safe-buffer "^5.1.0"
 
+randomhex@0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/randomhex/-/randomhex-0.1.5.tgz#baceef982329091400f2a2912c6cd02f1094f585"
+  integrity sha1-us7vmCMpCRQA8qKRLGzQLxCU9YU=
+
 range-parser@^1.0.3, range-parser@~1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.1.tgz#3cf37023d199e1c24d1a55b84800c2f3e6468031"
@@ -8923,7 +9366,7 @@ read-pkg@^2.0.0:
     normalize-package-data "^2.3.2"
     path-type "^2.0.0"
 
-"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.3, readable-stream@^2.3.6, readable-stream@~2.3.6:
+"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5, readable-stream@^2.3.6, readable-stream@~2.3.6:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
@@ -9152,7 +9595,7 @@ request-promise-native@^1.0.5:
     stealthy-require "^1.1.1"
     tough-cookie "^2.3.3"
 
-request@^2.87.0:
+request@^2.79.0, request@^2.87.0:
   version "2.88.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
   integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==
@@ -9239,6 +9682,13 @@ resolve@^1.10.0, resolve@^1.3.2, resolve@^1.5.0, resolve@^1.6.0, resolve@^1.8.1,
   dependencies:
     path-parse "^1.0.6"
 
+responselike@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/responselike/-/responselike-1.0.2.tgz#918720ef3b631c5642be068f15ade5a46f4ba1e7"
+  integrity sha1-kYcg7ztjHFZCvgaPFa3lpG9Loec=
+  dependencies:
+    lowercase-keys "^1.0.0"
+
 restore-cursor@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
@@ -9396,12 +9846,17 @@ schema-utils@^1.0.0:
     ajv-errors "^1.0.0"
     ajv-keywords "^3.1.0"
 
+scrypt-js@2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/scrypt-js/-/scrypt-js-2.0.3.tgz#bb0040be03043da9a012a2cea9fc9f852cfc87d4"
+  integrity sha1-uwBAvgMEPamgEqLOqfyfhSz8h9Q=
+
 scrypt-js@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/scrypt-js/-/scrypt-js-2.0.4.tgz#32f8c5149f0797672e551c07e230f834b6af5f16"
   integrity sha512-4KsaGcPnuhtCZQCxFxN3GVYIhKFPTdLd8PLC552XwbMndtD0cjRFAhDuuydXQ0h08ZfPgzqe6EKHozpuH74iDw==
 
-scrypt.js@0.3.0:
+scrypt.js@0.3.0, scrypt.js@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/scrypt.js/-/scrypt.js-0.3.0.tgz#6c62d61728ad533c8c376a2e5e3e86d41a95c4c0"
   integrity sha512-42LTc1nyFsyv/o0gcHtDztrn+aqpkaCNt5Qh7ATBZfhEZU7IC/0oT/qbBH+uRNoAPvs2fwiOId68FDEoSRA8/A==
@@ -9443,6 +9898,13 @@ seedrandom@2.4.3:
   resolved "https://registry.yarnpkg.com/seedrandom/-/seedrandom-2.4.3.tgz#2438504dad33917314bff18ac4d794f16d6aaecc"
   integrity sha1-JDhQTa0zkXMUv/GKxNeU8W1qrsw=
 
+seek-bzip@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/seek-bzip/-/seek-bzip-1.0.5.tgz#cfe917cb3d274bcffac792758af53173eb1fabdc"
+  integrity sha1-z+kXyz0nS8/6x5J1ivUxc+sfq9w=
+  dependencies:
+    commander "~2.8.1"
+
 select-hose@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"
@@ -9512,6 +9974,17 @@ serve-static@1.14.1:
     parseurl "~1.3.3"
     send "0.17.1"
 
+servify@^0.1.12:
+  version "0.1.12"
+  resolved "https://registry.yarnpkg.com/servify/-/servify-0.1.12.tgz#142ab7bee1f1d033b66d0707086085b17c06db95"
+  integrity sha512-/xE6GvsKKqyo1BAY+KxOWXcLpPsUUyji7Qg3bVD7hh1eRze5bR1uYiuDA/k3Gof1s9BTzQZEJK8sNcNGFIzeWw==
+  dependencies:
+    body-parser "^1.16.0"
+    cors "^2.8.1"
+    express "^4.14.0"
+    request "^2.79.0"
+    xhr "^2.3.3"
+
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -9565,6 +10038,13 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
+sha3@^1.2.2:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/sha3/-/sha3-1.2.3.tgz#ed5958fa8331df1b1b8529ca9fdf225a340c5418"
+  integrity sha512-sOWDZi8cDBRkLfWOw18wvJyNblXDHzwMGnRWut8zNNeIeLnmMRO17bjpLc7OzMuj1ASUgx2IyohzUCAl+Kx5vA==
+  dependencies:
+    nan "2.13.2"
+
 shallow-clone@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/shallow-clone/-/shallow-clone-0.1.2.tgz#5909e874ba77106d73ac414cfec1ffca87d97060"
@@ -10029,6 +10509,13 @@ strip-comments@^1.0.2:
     babel-extract-comments "^1.0.0"
     babel-plugin-transform-object-rest-spread "^6.26.0"
 
+strip-dirs@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/strip-dirs/-/strip-dirs-2.1.0.tgz#4987736264fc344cf20f6c34aca9d13d1d4ed6c5"
+  integrity sha512-JOCxOeKLm2CAS73y/U4ZeZPTkE+gNVCzKt7Eox84Iej1LT/2pTWYpZKJuxwQpvX1LiZb1xokNR7RLfuBAa7T3g==
+  dependencies:
+    is-natural-number "^4.0.1"
+
 strip-eof@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
@@ -10063,12 +10550,12 @@ stylehacks@^4.0.0:
     postcss "^7.0.0"
     postcss-selector-parser "^3.0.0"
 
-supports-color@4.4.0:
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.4.0.tgz#883f7ddabc165142b2a61427f3352ded195d1a3e"
-  integrity sha512-rKC3+DyXWgK0ZLKwmRsrkyHVZAjNkfzeehuFWdGGcqGDTZFH73+RH6S/RDAAxl9GusSjZSUWYLmT9N5pzXFOXQ==
+supports-color@5.4.0:
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.4.0.tgz#1c6b337402c2137605efe19f10fec390f6faab54"
+  integrity sha512-zjaXglF5nnWpsq470jSv6P9DwPvgLkuapYmfDm3JWOm0vkNTVF2tI4UrN2r6jH1qM/uc/WtxYY1hYoA2dOKj5w==
   dependencies:
-    has-flag "^2.0.0"
+    has-flag "^3.0.0"
 
 supports-color@^2.0.0:
   version "2.0.0"
@@ -10116,6 +10603,24 @@ svgo@^1.0.0, svgo@^1.2.1:
     unquote "~1.1.1"
     util.promisify "~1.0.0"
 
+swarm-js@0.1.39:
+  version "0.1.39"
+  resolved "https://registry.yarnpkg.com/swarm-js/-/swarm-js-0.1.39.tgz#79becb07f291d4b2a178c50fee7aa6e10342c0e8"
+  integrity sha512-QLMqL2rzF6n5s50BptyD6Oi0R1aWlJC5Y17SRIVXRj6OR1DRIPM7nepvrxxkjA1zNzFz6mUOMjfeqeDaWB7OOg==
+  dependencies:
+    bluebird "^3.5.0"
+    buffer "^5.0.5"
+    decompress "^4.0.0"
+    eth-lib "^0.1.26"
+    fs-extra "^4.0.2"
+    got "^7.1.0"
+    mime-types "^2.1.16"
+    mkdirp-promise "^5.0.1"
+    mock-fs "^4.1.0"
+    setimmediate "^1.0.5"
+    tar "^4.0.2"
+    xhr-request-promise "^0.1.2"
+
 symbol-observable@1.2.0, symbol-observable@^1.0.4, symbol-observable@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.2.0.tgz#c22688aed4eab3cdc2dfeacbb561660560a00804"
@@ -10141,7 +10646,20 @@ tapable@^1.0.0, tapable@^1.1.0:
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.3.tgz#a1fccc06b58db61fd7a45da2da44f5f3a3e67ba2"
   integrity sha512-4WK/bYZmj8xLr+HUCODHGF1ZFzsYffasLUgEiMBY4fgtltdO6B4WJtlSbPaDTLpYTcGVwM2qLnFTICEcNxs3kA==
 
-tar@^4:
+tar-stream@^1.5.2:
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.6.2.tgz#8ea55dab37972253d9a9af90fdcd559ae435c555"
+  integrity sha512-rzS0heiNf8Xn7/mpdSVVSMAWAoy9bfb1WOTYC78Z0UQKeKa/CWS8FOq0lKGNa8DWKAn9gxjCvMLYc5PGXYlK2A==
+  dependencies:
+    bl "^1.0.0"
+    buffer-alloc "^1.2.0"
+    end-of-stream "^1.0.0"
+    fs-constants "^1.0.0"
+    readable-stream "^2.3.0"
+    to-buffer "^1.1.1"
+    xtend "^4.0.0"
+
+tar@^4, tar@^4.0.2:
   version "4.4.10"
   resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.10.tgz#946b2810b9a5e0b26140cf78bea6b0b0d689eba1"
   integrity sha512-g2SVs5QIxvo6OLp0GudTqEf05maawKUxXru104iaayWA09551tFCTI8f1Asb4lPfkBr91k07iL4c11XO3/b0tA==
@@ -10231,7 +10749,7 @@ through2@^2.0.0:
     readable-stream "~2.3.6"
     xtend "~4.0.1"
 
-through@^2.3.6:
+through@^2.3.6, through@^2.3.8:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
   integrity sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=
@@ -10241,7 +10759,7 @@ thunky@^1.0.2:
   resolved "https://registry.yarnpkg.com/thunky/-/thunky-1.0.3.tgz#f5df732453407b09191dae73e2a8cc73f381a826"
   integrity sha512-YwT8pjmNcAXBZqrubu22P4FYsh2D4dxRmnWBOL8Jk8bUcRUtc5326kx32tuTmFDAZtLOGEVNl8POAR8j896Iow==
 
-timed-out@^4.0.1:
+timed-out@^4.0.0, timed-out@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
   integrity sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8=
@@ -10285,6 +10803,11 @@ to-arraybuffer@^1.0.0:
   resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
   integrity sha1-fSKbH8xjfkZsoIEYCDanqr/4P0M=
 
+to-buffer@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/to-buffer/-/to-buffer-1.1.1.tgz#493bd48f62d7c43fcded313a03dcadb2e1213a80"
+  integrity sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg==
+
 to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
@@ -10302,6 +10825,11 @@ to-object-path@^0.3.0:
   dependencies:
     kind-of "^3.0.2"
 
+to-readable-stream@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/to-readable-stream/-/to-readable-stream-1.0.0.tgz#ce0aa0c2f3df6adf852efb404a783e77c0475771"
+  integrity sha512-Iq25XBt6zD5npPhlLVXGFN3/gyR2/qODcKNNyTMd4vbm39HUaOiAM4PMq0eMVC/Tkxz+Zjdsc55g9yyz+Yq00Q==
+
 to-regex-range@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-2.1.1.tgz#7c80c17b9dfebe599e27367e0d4dd5590141db38"
@@ -10365,13 +10893,13 @@ trough@^1.0.0:
   resolved "https://registry.yarnpkg.com/trough/-/trough-1.0.4.tgz#3b52b1f13924f460c3fbfd0df69b587dbcbc762e"
   integrity sha512-tdzBRDGWcI1OpPVmChbdSKhvSVurznZ8X36AYURAcl+0o2ldlCY2XPzyXNNxwJwwyIU+rIglTCG4kxtNKBQH7Q==
 
-truffle@^5.0.22:
-  version "5.0.22"
-  resolved "https://registry.yarnpkg.com/truffle/-/truffle-5.0.22.tgz#a5a86a10317dfe1443cbcf25e4848aced8334733"
-  integrity sha512-6J/mgpgtA1m165WJrNmcRcsnaAjrMluGwTfoiG1pbpvsBoXkCL3nIVQaeYgRFOgDdrIJh1sInH+xFRhzkF/MBg==
+truffle@^5.0.29:
+  version "5.0.29"
+  resolved "https://registry.yarnpkg.com/truffle/-/truffle-5.0.29.tgz#79f774daa6afbe487aaf691c95ab9b0042e4a56b"
+  integrity sha512-jYAxjzTNgpHDAZ3QQPww8OBouhA8vucDRJmnmw61KwZEpuZZ2gP4uLjSSeHGT0AiFfouz7Aen6dpwTinrNCLWQ==
   dependencies:
     app-module-path "^2.2.0"
-    mocha "^4.1.0"
+    mocha "5.2.0"
     original-require "1.0.1"
 
 tryer@^1.0.0:
@@ -10421,7 +10949,7 @@ type-is@~1.6.17, type-is@~1.6.18:
     media-typer "0.3.0"
     mime-types "~2.1.24"
 
-typedarray-to-buffer@^3.1.5:
+typedarray-to-buffer@^3.1.2, typedarray-to-buffer@^3.1.5:
   version "3.1.5"
   resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz#a97ee7a9ff42691b9f783ff1bc5112fe3fca9080"
   integrity sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==
@@ -10459,6 +10987,24 @@ uglify-js@^3.1.4:
     commander "~2.20.0"
     source-map "~0.6.1"
 
+ultron@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
+  integrity sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og==
+
+unbzip2-stream@^1.0.9:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/unbzip2-stream/-/unbzip2-stream-1.3.3.tgz#d156d205e670d8d8c393e1c02ebd506422873f6a"
+  integrity sha512-fUlAF7U9Ah1Q6EieQ4x4zLNejrRvDWUYmxXUpN3uziFYCHapjWFaCAnreY9bGgxzaMCFAPPpYNng57CypwJVhg==
+  dependencies:
+    buffer "^5.2.1"
+    through "^2.3.8"
+
+underscore@1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.9.1.tgz#06dce34a0e68a7babc29b365b8e74b8925203961"
+  integrity sha512-5/4etnCkd9c8gwgowi5/om/mYO5ajCaOgdzj/oW+0eQV9WxKBDZw5+ycmKmeaTXjInS/W0BzpGLo2xR2aBwZdg==
+
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz#2619800c4c825800efdd8343af7dd9933cbe2818"
@@ -10596,6 +11142,20 @@ url-loader@1.1.2:
     mime "^2.0.3"
     schema-utils "^1.0.0"
 
+url-parse-lax@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/url-parse-lax/-/url-parse-lax-1.0.0.tgz#7af8f303645e9bd79a272e7a14ac68bc0609da73"
+  integrity sha1-evjzA2Rem9eaJy56FKxovAYJ2nM=
+  dependencies:
+    prepend-http "^1.0.1"
+
+url-parse-lax@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/url-parse-lax/-/url-parse-lax-3.0.0.tgz#16b5cafc07dbe3676c1b1999177823d6503acb0c"
+  integrity sha1-FrXK/Afb42dsGxmZF3gj1lA6yww=
+  dependencies:
+    prepend-http "^2.0.0"
+
 url-parse@1.4.4:
   version "1.4.4"
   resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.4.4.tgz#cac1556e95faa0303691fec5cf9d5a1bc34648f8"
@@ -10617,6 +11177,11 @@ url-set-query@^1.0.0:
   resolved "https://registry.yarnpkg.com/url-set-query/-/url-set-query-1.0.0.tgz#016e8cfd7c20ee05cafe7795e892bd0702faa339"
   integrity sha1-AW6M/Xwg7gXK/neV6JK9BwL6ozk=
 
+url-to-options@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/url-to-options/-/url-to-options-1.0.1.tgz#1505a03a289a48cbd7a434efbaeec5055f5633a9"
+  integrity sha1-FQWgOiiaSMvXpDTvuu7FBV9WM6k=
+
 url@^0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"
@@ -10635,6 +11200,11 @@ utf8@2.1.1:
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-2.1.1.tgz#2e01db02f7d8d0944f77104f1609eb0c304cf768"
   integrity sha1-LgHbAvfY0JRPdxBPFgnrDDBM92g=
 
+utf8@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/utf8/-/utf8-3.0.0.tgz#f052eed1364d696e769ef058b183df88c87f69d1"
+  integrity sha512-E8VjFIQ/TyQgp+TZfS6l8yp/xWppSAHzidGiRrqe4bK4XP9pTRyKFgGJpO3SN7zdX4DeomTrwaseCHovfpFcqQ==
+
 util-deprecate@^1.0.1, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
@@ -10695,7 +11265,7 @@ value-equal@^0.4.0:
   resolved "https://registry.yarnpkg.com/value-equal/-/value-equal-0.4.0.tgz#c5bdd2f54ee093c04839d71ce2e4758a6890abc7"
   integrity sha512-x+cYdNnaA3CxvMaTX0INdTCN8m8aF2uY9BvEqmxuYp8bL09cs/kWVQPVGcA35fMktdOsP69IgU7wFj/61dJHEw==
 
-vary@~1.1.2:
+vary@^1, vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
   integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
@@ -10812,6 +11382,15 @@ web-namespaces@^1.1.2:
   resolved "https://registry.yarnpkg.com/web-namespaces/-/web-namespaces-1.1.3.tgz#9bbf5c99ff0908d2da031f1d732492a96571a83f"
   integrity sha512-r8sAtNmgR0WKOKOxzuSgk09JsHlpKlB+uHi937qypOu3PZ17UxPrierFKDye/uNHjNTTEshu5PId8rojIPj/tA==
 
+web3-bzz@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-bzz/-/web3-bzz-1.2.0.tgz#eab70a2cf6c437223f40fc069499fe70ff53feb0"
+  integrity sha512-QEIdvguSEpqBK9b815nzx4yvpfKv/SAvaFeCMjQ0vjIVqFhAwBHDxd+f+X3nWGVRGVeOTP7864tau26CPBtQ8Q==
+  dependencies:
+    got "9.6.0"
+    swarm-js "0.1.39"
+    underscore "1.9.1"
+
 web3-core-helpers@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-core-helpers/-/web3-core-helpers-1.0.0-beta.55.tgz#832b8499889f9f514b1d174f00172fd3683d63de"
@@ -10823,6 +11402,15 @@ web3-core-helpers@1.0.0-beta.55:
     web3-eth-iban "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-core-helpers@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-helpers/-/web3-core-helpers-1.2.0.tgz#023947323cebd021e43a67145a5087627ce87fb3"
+  integrity sha512-KLCCP2FS1cMz23Y9l3ZaEDzaUky+GpsNavl4Hn1xX8lNaKcfgGEF+DgtAY/TfPQYAxLjLrSbIFUDzo9H/W1WAQ==
+  dependencies:
+    underscore "1.9.1"
+    web3-eth-iban "1.2.0"
+    web3-utils "1.2.0"
+
 web3-core-method@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-core-method/-/web3-core-method-1.0.0-beta.55.tgz#0af994295ac2dd64ccd53305b7df8da76e11da49"
@@ -10837,6 +11425,36 @@ web3-core-method@1.0.0-beta.55:
     web3-core-subscriptions "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-core-method@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-method/-/web3-core-method-1.2.0.tgz#9f6a6939d15f53bc74d086f280fbd62461546cd3"
+  integrity sha512-Iff5rCL+sgHe6zZVZijp818aRixKQf3ZAyQsT6ewER1r9yqXsH89DJtX33Xw8xiaYSwUFcpNs2j+Kluhv/eVAw==
+  dependencies:
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+    web3-core-promievent "1.2.0"
+    web3-core-subscriptions "1.2.0"
+    web3-utils "1.2.0"
+
+web3-core-promievent@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-promievent/-/web3-core-promievent-1.2.0.tgz#d6454837a307da5b453fe3077743fe25801a07a1"
+  integrity sha512-9THNYsZka91AX4LZGZvka5hio9+QlOY22hNgCiagmCmYytyKk3cXftL6CWefnNF7XgW8sy/ew5lzWLVsQW61Lw==
+  dependencies:
+    any-promise "1.3.0"
+    eventemitter3 "3.1.2"
+
+web3-core-requestmanager@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-requestmanager/-/web3-core-requestmanager-1.2.0.tgz#a7f9995495340037e7ac72792c1885c35c1e7616"
+  integrity sha512-hPe1jyESodXAiE7qJglu7ySo4GINCn5CgG+9G1ATLQbriZsir83QMSeKQekv/hckKFIf4SvZJRPEBhtAle+Dhw==
+  dependencies:
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+    web3-providers-http "1.2.0"
+    web3-providers-ipc "1.2.0"
+    web3-providers-ws "1.2.0"
+
 web3-core-subscriptions@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-core-subscriptions/-/web3-core-subscriptions-1.0.0-beta.55.tgz#105902c13db53466fc17d07a981ad3d41c700f76"
@@ -10846,6 +11464,15 @@ web3-core-subscriptions@1.0.0-beta.55:
     eventemitter3 "^3.1.0"
     lodash "^4.17.11"
 
+web3-core-subscriptions@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-subscriptions/-/web3-core-subscriptions-1.2.0.tgz#d359b9b5fb6f6a700f1b383be11de7925cb7549f"
+  integrity sha512-DHipGH8It5E4HxxvymhkudcYhBVgGx6MwGWobIVKFgp6JRxtuvAbqwrMbuD/+78J6yXOa4y9zVXBk12dm2NXGg==
+  dependencies:
+    eventemitter3 "3.1.2"
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+
 web3-core@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-core/-/web3-core-1.0.0-beta.55.tgz#26b9abbf1bc1837c9cc90f06ecbc4ed714f89b53"
@@ -10859,6 +11486,16 @@ web3-core@1.0.0-beta.55:
     web3-providers "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-core@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core/-/web3-core-1.2.0.tgz#6f3c59f84b2af9ab0ee7617d3c5208a814d3953c"
+  integrity sha512-Vy+fargzx94COdihE79zIM5lb/XAl/LJlgGdmz2a6QhgGZrSL8K6DKKNS+OuORAcLJN2PWNMc4IdfknkOw1PhQ==
+  dependencies:
+    web3-core-helpers "1.2.0"
+    web3-core-method "1.2.0"
+    web3-core-requestmanager "1.2.0"
+    web3-utils "1.2.0"
+
 web3-eth-abi@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-eth-abi/-/web3-eth-abi-1.0.0-beta.55.tgz#69250420039346105a3d0f899c0a8a53be926f97"
@@ -10869,6 +11506,15 @@ web3-eth-abi@1.0.0-beta.55:
     lodash "^4.17.11"
     web3-utils "1.0.0-beta.55"
 
+web3-eth-abi@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth-abi/-/web3-eth-abi-1.2.0.tgz#26b22261756ffbb3363bc37c1a6f5143bebb6469"
+  integrity sha512-FDuPq/tFeMg/D/f7cNSmvVYkMYb1z379gUUzSL8ZFtZrdHPkezq+lq/TmWmbCOMLYNXlhGJBzjGdLXRS4Upprg==
+  dependencies:
+    ethers "4.0.0-beta.3"
+    underscore "1.9.1"
+    web3-utils "1.2.0"
+
 web3-eth-accounts@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-eth-accounts/-/web3-eth-accounts-1.0.0-beta.55.tgz#ba734ffdc1e3cc8ac0ea01de5241323a0c2f69f3"
@@ -10888,6 +11534,22 @@ web3-eth-accounts@1.0.0-beta.55:
     web3-providers "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-eth-accounts@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth-accounts/-/web3-eth-accounts-1.2.0.tgz#bb26d5446017700a13b75fc69a2b1226fe44f6bb"
+  integrity sha512-d/fUAL3F6HqstvEiBnZ1RwZ77/DytgF9d6A3mWVvPOUk2Pqi77PM0adRvsKvIWUaQ/k6OoCk/oXtbzaO7CyGpg==
+  dependencies:
+    any-promise "1.3.0"
+    crypto-browserify "3.12.0"
+    eth-lib "0.2.7"
+    scrypt.js "^0.3.0"
+    underscore "1.9.1"
+    uuid "3.3.2"
+    web3-core "1.2.0"
+    web3-core-helpers "1.2.0"
+    web3-core-method "1.2.0"
+    web3-utils "1.2.0"
+
 web3-eth-contract@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-eth-contract/-/web3-eth-contract-1.0.0-beta.55.tgz#cd9e6727ff73d648ebe7cae17516e8aec5873c65"
@@ -10905,6 +11567,20 @@ web3-eth-contract@1.0.0-beta.55:
     web3-providers "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-eth-contract@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth-contract/-/web3-eth-contract-1.2.0.tgz#8d1c235c6624b5df428969ea2e9c26337095f6f0"
+  integrity sha512-hfjozNbfsoMeR3QklfkwU0Mqcw6YRD4y1Cb1ghGWNhFy2+/sbvKcQNPPJDKFTde22PRzGQBWyh/nb422Sux4bQ==
+  dependencies:
+    underscore "1.9.1"
+    web3-core "1.2.0"
+    web3-core-helpers "1.2.0"
+    web3-core-method "1.2.0"
+    web3-core-promievent "1.2.0"
+    web3-core-subscriptions "1.2.0"
+    web3-eth-abi "1.2.0"
+    web3-utils "1.2.0"
+
 web3-eth-ens@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-eth-ens/-/web3-eth-ens-1.0.0-beta.55.tgz#4341434a3406728212d411ae7f22d4cf5b8642fe"
@@ -10923,6 +11599,20 @@ web3-eth-ens@1.0.0-beta.55:
     web3-providers "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-eth-ens@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth-ens/-/web3-eth-ens-1.2.0.tgz#af66308542f4acfa09ccd3ce370e3ad2de20ec30"
+  integrity sha512-kE6uHMLwH9dv+MZSKT7BcKXcQ6CcLP5m5mM44s2zg2e9Rl20F3J6R3Ik6sLc/w2ywdCwTe/Z22yEstHXQwu5ig==
+  dependencies:
+    eth-ens-namehash "2.0.8"
+    underscore "1.9.1"
+    web3-core "1.2.0"
+    web3-core-helpers "1.2.0"
+    web3-core-promievent "1.2.0"
+    web3-eth-abi "1.2.0"
+    web3-eth-contract "1.2.0"
+    web3-utils "1.2.0"
+
 web3-eth-iban@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-eth-iban/-/web3-eth-iban-1.0.0-beta.55.tgz#15146a69de21addc99e7dbfb2920555b1e729637"
@@ -10932,6 +11622,14 @@ web3-eth-iban@1.0.0-beta.55:
     bn.js "4.11.8"
     web3-utils "1.0.0-beta.55"
 
+web3-eth-iban@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth-iban/-/web3-eth-iban-1.2.0.tgz#1bece9cebf817dca82fa03230203351f4f263866"
+  integrity sha512-6DzTx/cvIgEvxadhJjLGpsuDUARA4RKskNOuwWYUsUODcPb50rsfMmRkHhGtLss/sNXVE5gNjbT9rX3TDqy2tg==
+  dependencies:
+    bn.js "4.11.8"
+    web3-utils "1.2.0"
+
 web3-eth-personal@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-eth-personal/-/web3-eth-personal-1.0.0-beta.55.tgz#76e9d2da1501ee3c686751e7c7df63cc11793a1d"
@@ -10946,6 +11644,17 @@ web3-eth-personal@1.0.0-beta.55:
     web3-providers "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-eth-personal@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth-personal/-/web3-eth-personal-1.2.0.tgz#7194f519c870d720eee1349d867408004f0f78af"
+  integrity sha512-8QdcaT6dbdiMC8zEqvDuij8XeI34r2GGdQYGvYBP2UgCm15EZBHgewxO30A+O+j2oIW1/Hu60zP5upnhCuA1Dw==
+  dependencies:
+    web3-core "1.2.0"
+    web3-core-helpers "1.2.0"
+    web3-core-method "1.2.0"
+    web3-net "1.2.0"
+    web3-utils "1.2.0"
+
 web3-eth@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-eth/-/web3-eth-1.0.0-beta.55.tgz#bb52150df0a77bd13511449a53793d4eb23ade6e"
@@ -10968,6 +11677,25 @@ web3-eth@1.0.0-beta.55:
     web3-providers "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-eth@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth/-/web3-eth-1.2.0.tgz#ac8d3409356538d2fe1cb6151036b724eace76f6"
+  integrity sha512-GP1+hHS/IVW1tAOIDS44PxCpvSl9PBU/KAB40WgP27UMvSy43LjHxGlP6hQQOdIfmBLBTvGvn2n+Z5kW2gzAzg==
+  dependencies:
+    underscore "1.9.1"
+    web3-core "1.2.0"
+    web3-core-helpers "1.2.0"
+    web3-core-method "1.2.0"
+    web3-core-subscriptions "1.2.0"
+    web3-eth-abi "1.2.0"
+    web3-eth-accounts "1.2.0"
+    web3-eth-contract "1.2.0"
+    web3-eth-ens "1.2.0"
+    web3-eth-iban "1.2.0"
+    web3-eth-personal "1.2.0"
+    web3-net "1.2.0"
+    web3-utils "1.2.0"
+
 web3-net@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-net/-/web3-net-1.0.0-beta.55.tgz#daf24323df16a890a0bac6c6eda48b6e8c7e96ef"
@@ -10981,6 +11709,41 @@ web3-net@1.0.0-beta.55:
     web3-providers "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-net@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-net/-/web3-net-1.2.0.tgz#9e99c4326a28712451dc4d45f3acf26c1d4b3219"
+  integrity sha512-7iD8C6vvx8APXPMmlpPLGWjn4bsXHzd3BTdFzKjkoYjiiVFJdVAbY3j1BwN/6tVQu8Ay7sDpV2EdTNub7GKbyw==
+  dependencies:
+    web3-core "1.2.0"
+    web3-core-method "1.2.0"
+    web3-utils "1.2.0"
+
+web3-providers-http@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-providers-http/-/web3-providers-http-1.2.0.tgz#c6ebf9b6a23564439fa3c4a431cd6b405cc1ec0f"
+  integrity sha512-UrUn6JSz7NVCZ+0nZZtC4cmbl5JIi57w1flL1jN8jgkfdWDdErNvTkSwCt/QYdTQscMaUtWXDDOSAsVO6YC64g==
+  dependencies:
+    web3-core-helpers "1.2.0"
+    xhr2-cookies "1.1.0"
+
+web3-providers-ipc@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-providers-ipc/-/web3-providers-ipc-1.2.0.tgz#98b8b8c9e77935dabfcf6d16e66c783f2429eac8"
+  integrity sha512-T2OSbiqu7+dahbGG5YFEQM5+FXdLVvaTCKmHXaQpw8IuL5hw7HELtyFOtHVudgDRyw0tJKxIfAiX/v2F1IL1fQ==
+  dependencies:
+    oboe "2.1.4"
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+
+web3-providers-ws@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-providers-ws/-/web3-providers-ws-1.2.0.tgz#c45929f0d1e1743301372e6e604aab63e83f66e3"
+  integrity sha512-rnwGcCe6cev5A6eG5UBCQqPmkJVZMCrK+HN1AvUCco0OHD/0asGc9LuLbtkQIyznA6Lzetq/OOcaTOM4KeT11g==
+  dependencies:
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+    websocket "github:frozeman/WebSocket-Node#browserifyCompatible"
+
 web3-providers@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-providers/-/web3-providers-1.0.0-beta.55.tgz#639503517741b69baaa82f1f940630df6a25992b"
@@ -11012,6 +11775,16 @@ web3-shh@1.0.0-beta.55:
     web3-providers "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3-shh@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-shh/-/web3-shh-1.2.0.tgz#c07c306d761f70782c64e2b5b119db54e16f301f"
+  integrity sha512-VFjS8kvsQBodudFmIoVJWvDNZosONJZZnhvktngD3POu5dwbJmSCl6lzbLJ2C5XjR15dF+JvSstAkWbM+2sdPg==
+  dependencies:
+    web3-core "1.2.0"
+    web3-core-method "1.2.0"
+    web3-core-subscriptions "1.2.0"
+    web3-net "1.2.0"
+
 web3-utils@1.0.0-beta.55:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.0.0-beta.55.tgz#beb40926b7c04208b752d36a9bc959d27a04b308"
@@ -11028,7 +11801,20 @@ web3-utils@1.0.0-beta.55:
     randombytes "^2.1.0"
     utf8 "2.1.1"
 
-web3@^1.0.0-beta.37, web3@^1.0.0-beta.52:
+web3-utils@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.2.0.tgz#1f11b05d173b757d3f5ba32cb90b375a487d3bf0"
+  integrity sha512-tI1low8ICoaWU2c53cikH0rsksKuIskI2nycH5E5sEXxxl9/BOD3CeDDBFbxgNPQ+bpDevbR7gXNEDB7Ud4G9g==
+  dependencies:
+    bn.js "4.11.8"
+    eth-lib "0.2.7"
+    ethjs-unit "0.1.6"
+    number-to-bn "1.7.0"
+    randomhex "0.1.5"
+    underscore "1.9.1"
+    utf8 "3.0.0"
+
+web3@^1.0.0-beta.37:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3/-/web3-1.0.0-beta.55.tgz#8845075129299da172c2eb41a748c8a87c2a2b5a"
   integrity sha512-yJpwy4IUA3T/F9hWzYQVn0GbJCrAaZ0KTIO3iuqkhaYH0Y09KV7k4GzFi4hN7hT4cFTj4yIKaeVCwQ5kzvi2Vg==
@@ -11043,6 +11829,19 @@ web3@^1.0.0-beta.37, web3@^1.0.0-beta.52:
     web3-shh "1.0.0-beta.55"
     web3-utils "1.0.0-beta.55"
 
+web3@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3/-/web3-1.2.0.tgz#ef9c43a99eac348a85c09179690290d45a96a5f2"
+  integrity sha512-iFrVAexsopX97x0ofBU/7HrCxzovf624qBkjBUeHZDf/G3Sb4tMQtjkCRc5lgVvzureq5SCqDiFDcqnw7eJ0bA==
+  dependencies:
+    web3-bzz "1.2.0"
+    web3-core "1.2.0"
+    web3-eth "1.2.0"
+    web3-eth-personal "1.2.0"
+    web3-net "1.2.0"
+    web3-shh "1.2.0"
+    web3-utils "1.2.0"
+
 webidl-conversions@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
@@ -11173,6 +11972,15 @@ websocket@^1.0.28:
     typedarray-to-buffer "^3.1.5"
     yaeti "^0.0.6"
 
+"websocket@github:frozeman/WebSocket-Node#browserifyCompatible":
+  version "1.0.26"
+  resolved "https://codeload.github.com/frozeman/WebSocket-Node/tar.gz/6c72925e3f8aaaea8dc8450f97627e85263999f2"
+  dependencies:
+    debug "^2.2.0"
+    nan "^2.3.3"
+    typedarray-to-buffer "^3.1.2"
+    yaeti "^0.0.6"
+
 whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz#5abacf777c32166a51d085d6b4f3e7d27113ddb0"
@@ -11400,6 +12208,15 @@ write@^0.2.1:
   dependencies:
     mkdirp "^0.5.1"
 
+ws@^3.0.0:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"
+  integrity sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==
+  dependencies:
+    async-limiter "~1.0.0"
+    safe-buffer "~5.1.0"
+    ultron "~1.1.0"
+
 ws@^5.2.0:
   version "5.2.2"
   resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.2.tgz#dffef14866b8e8dc9133582514d1befaf96e980f"
@@ -11439,7 +12256,7 @@ xhr2-cookies@1.1.0:
   dependencies:
     cookiejar "^2.1.1"
 
-xhr@^2.0.4:
+xhr@^2.0.4, xhr@^2.3.3:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/xhr/-/xhr-2.5.0.tgz#bed8d1676d5ca36108667692b74b316c496e49dd"
   integrity sha512-4nlO/14t3BNUZRXIXfXe+3N6w3s1KoxcJUUURctd64BLRe67E4gRwp4PjywtDY72fXpZ1y6Ch0VZQRY/gMPzzQ==
@@ -11543,3 +12360,11 @@ yargs@^11.0.0:
     which-module "^2.0.0"
     y18n "^3.2.1"
     yargs-parser "^9.0.2"
+
+yauzl@^2.4.2:
+  version "2.10.0"
+  resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.10.0.tgz#c7eb17c93e112cb1086fa6d8e51fb0667b79a5f9"
+  integrity sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=
+  dependencies:
+    buffer-crc32 "~0.2.3"
+    fd-slicer "~1.1.0"
diff --git a/simulation/Dockerfile b/simulation/Dockerfile
index cc772cab..823d3b3a 100644
--- a/simulation/Dockerfile
+++ b/simulation/Dockerfile
@@ -16,7 +16,7 @@ RUN conda init bash
 WORKDIR /root/workspace/0xDeCA10B/simulation
 COPY setup.py .
 
-RUN conda run --name decai-simulation pip install -e .
+RUN conda run --name decai-simulation pip install -e .[test]
 
 RUN echo "conda activate decai-simulation" >> ~/.bashrc
 
diff --git a/simulation/README.md b/simulation/README.md
index dc24a3b6..9679cc2b 100644
--- a/simulation/README.md
+++ b/simulation/README.md
@@ -81,7 +81,7 @@ Run `bokeh serve decai/simulation/simulate_imdb_neural_network.py` and open your
 # Testing
 Setup the testing environment: 
 ```bash
-pip install pytest
+pip install -e .[test]
 ```
 
 Run tests: