Swift 4 final release with new version number bump.

2.0

Reverting certain swift 4.1 mandatory changes.

Update to swift 4

Update to swift 4

Added support for macos.

Added support for macos.

More features and tests

More features and test.

More features and tests.

<Description> : Release candidate for v1.9

<Type> : release

More features and tests.

1.8

===================Version 1.8====================

Updated To Swift 3.0

Merge pull request #202 from goktugyil/Swift3

Merge pull request #198 from piv199/swift3xcode8

More features, more tests

1.6

===================Version 1.6====================

tvos, travis support

1.5

Merge remote-tracking branch 'origin/master'

1.4

============Version 1.4=============