Transition Versions Save

This includes https://github.com/Touchwonders/Transition/pull/14

Includes PR #13 which fixes #10 and addresses Xcode warnings

Code updated to Swift 4.2

• Swift 4.0

Fixes for: • glitches on cancelled animations • hanging animations (never completing) • force-unwrapped nil fromView on modal transition dismissals • NavigationTransitionsExample (the "Pinterest" example) • public access of various properties

• Fixed podfile.lock in examples (PR#3) • Fixed code indentation in README (PR#2) • Added Carthage compatibility

First release! 🎉

This version is only used for initial submission to Cocoapods