[CHANGELOG] List added APIs in unreleased section

CHANGELOG.md

@@ -5,9 +5,12 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) a
 
 ## [Unreleased]
 ### Added
-- None.
+- New `NSRange(_:in:)` initializer for converting from `Range<String.Index>`
+- New `sum` computed property on `Sequence` types like `Array`
+- New `average` computed property on `Collection` types with `Int` or `Double` elements like `[Int]`
+- New `fullRange` and `fullNSRange` computed properties on `String`
 ### Changed
-- None.
+- Made some APIs available in wider contexts (like `sample` in `RandomAccessCollection` instead of `Array`) 
 ### Deprecated
 - None.
 ### Removed

HandySwift.xcodeproj/project.pbxproj

@@ -122,6 +122,9 @@
 		3F95C8D320F22DC60045AFD0 /* CollectionExtensionTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CollectionExtensionTests.swift; sourceTree = "<group>"; };
 		8218E4D52211D193007AAAF3 /* NSRangeExtension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NSRangeExtension.swift; sourceTree = "<group>"; };
 		8218E4D92211D270007AAAF3 /* NSRangeExtensionTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NSRangeExtensionTests.swift; sourceTree = "<group>"; };
+		8218E4DD2211D7D3007AAAF3 /* CODE_OF_CONDUCT.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = CODE_OF_CONDUCT.md; sourceTree = "<group>"; };
+		8218E4DE2211D7D3007AAAF3 /* CHANGELOG.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = CHANGELOG.md; sourceTree = "<group>"; };
+		8218E4DF2211D7D3007AAAF3 /* CONTRIBUTING.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = CONTRIBUTING.md; sourceTree = "<group>"; };
 		823B2B311C24AAB6007B3CDD /* HandySwift.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = HandySwift.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		823B2B341C24AAB7007B3CDD /* HandySwift.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = HandySwift.h; sourceTree = "<group>"; };
 		823B2B361C24AAB7007B3CDD /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
@@ -345,6 +348,9 @@
 			children = (
 				A15C62221EE734F100A7CA38 /* .swiftlint.yml */,
 				82EB7875215B96E20042E0FD /* beak.swift */,
+				8218E4DE2211D7D3007AAAF3 /* CHANGELOG.md */,
+				8218E4DD2211D7D3007AAAF3 /* CODE_OF_CONDUCT.md */,
+				8218E4DF2211D7D3007AAAF3 /* CONTRIBUTING.md */,
 				A19DD6921DE2B70F00C66584 /* HandySwift.podspec */,
 				82EB7876215B98530042E0FD /* LICENSE */,
 				82F22E551C26434900E784A2 /* Package.swift */,