Reverting certain swift 4.1 mandatory changes.

Updated podspec to 1.12 - Swift 4 migration.

Added MacOS target to cocoapods

Added 1.10 tag to podspec

<Description> : Release candidate for v1.9

<Type> : release

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

Merge pull request Esqarrouth#202 from goktugyil/Swift3

Merge pull request Esqarrouth#198 from piv199/swift3xcode8

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

Merge remote-tracking branch 'origin/master'

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