Update the CHANGELOG to correctly display what has been changed for t…

…he latest version (#569)

* Update the CHANGELOG to correctly display what has been changed for the latest version
Close the version to create a public release

* Update README and podspec for v4.6.0

Update for Swift 4.2 and Xcode 10 support (#562)

* Updating Code base and iOS Unit Tests.

* Updating MacOS tests

* Update travis image.

* Updating some extensions.

* Updating pod spec swift version

* Updating swift version

* Fixing indentation on some files.

* Indenting.

* Indenting some files.

* Running swiftlint autocorrect --format

* Workaround cocoapods issue

* Updating spec, readme and changelog for new version.

* Removing toggles since they are stdlib now.

* Deprecating random extensions in favor of the natives.

* Updating arc4_random usages.

* Removing prior SwifterSwift 4.2.0 version deprecated version.

Merge pull request #510 from SwifterSwift/v4.4

v4.4