diff --git a/go.sum b/go.sum
index ab514f6..9bd0630 100644
--- a/go.sum
+++ b/go.sum
@@ -37,6 +37,7 @@ github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5y
 github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gopherjs/gopherjs v0.0.0-20180214231123-3926a9f66452 h1:scdYBP1IGubL4YQPtCALHymZDFOG79Du20sjIGNYxAo=
 github.com/gopherjs/gopherjs v0.0.0-20180214231123-3926a9f66452/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/hajimehoshi/go-mp3 v0.3.0/go.mod h1:qMJj/CSDxx6CGHiZeCgbiq2DSUkbK0UbtXShQcnfyMM=
 github.com/hajimehoshi/oto v0.6.1/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
@@ -49,6 +50,7 @@ github.com/icza/bitio v1.0.0/go.mod h1:0jGnlLAx8MKMr9VGnn/4YrvZiprkvBelsVIbA9Jjr
 github.com/icza/mighty v0.0.0-20180919140131-cfd07d671de6/go.mod h1:xQig96I1VNBDIWGCdTt54nHt6EeI639SmHycLYL7FkA=
 github.com/jfreymuth/oggvorbis v1.0.1/go.mod h1:NqS+K+UXKje0FUYUPosyQ+XTVvjmVjps1aEZH1sumIk=
 github.com/jfreymuth/vorbis v1.0.0/go.mod h1:8zy3lUAm9K/rJJk223RKy6vjCZTWC61NA2QD06bfOE0=
+github.com/jtolds/gls v4.2.1+incompatible h1:fSuqC+Gmlu6l/ZYAoZzx2pyucC8Xza35fpRVWLVmUEE=
 github.com/jtolds/gls v4.2.1+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lucasb-eyer/go-colorful v1.0.2/go.mod h1:0MS4r+7BZKSJ5mw4/S5MPN+qHFF1fYclkSPilDOKW0s=
@@ -89,7 +91,9 @@ github.com/siddontang/go v0.0.0-20180604090527-bdc77568d726/go.mod h1:3yhqj7WBBf
 github.com/siddontang/go-snappy v0.0.0-20140704025258-d8f7bb82a96d/go.mod h1:vq0tzqLRu6TS7Id0wMo2N5QzJoKedVeovOpHjnykSzY=
 github.com/siddontang/ledisdb v0.0.0-20190202134119-8ceb77e66a92/go.mod h1:mF1DpOSOUiJRMR+FDqaqu3EBqrybQtrDDszLUZ6oxPg=
 github.com/siddontang/rdb v0.0.0-20150307021120-fc89ed2e418d/go.mod h1:AMEsy7v5z92TR1JKMkLLoaOQk++LVnOKL3ScbJ8GNGA=
+github.com/smartystreets/assertions v0.0.0-20170925172151-0b37b35ec743 h1:b8jeeClJ1TQznpWsxNb/eN++2qFp0sIsZ+weU5UM7b0=
 github.com/smartystreets/assertions v0.0.0-20170925172151-0b37b35ec743/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
+github.com/smartystreets/goconvey v0.0.0-20170825221426-e5b2b7c91115 h1:+946ba0L2KuUiB6qxnaR6FTqavWlS3Y6PKnkgX4uMKA=
 github.com/smartystreets/goconvey v0.0.0-20170825221426-e5b2b7c91115/go.mod h1:XDJAKZRPZ1CvBcN2aX5YOUTYGHki24fSF0Iv48Ibg0s=
 github.com/syndtr/goleveldb v1.0.0/go.mod h1:ZVVdQEZoIme9iO1Ch2Jdy24qqXrMMOU6lpPAyBWyWuQ=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=