4.2.0

This is the last version to support Swift 3.* including Swift 3.2 (for Xcode 9). Thanks to all the contributors:
@phimage, @tbaranes and @SD10.

API breaking changes

NO breaking changes 😁

Enhancements

• Add TimingFunctionType attribute to Animatable to specifies the speed curve of an animation. #478 by @phimage
  Add new mask type .ellipse. #481 by @phimage
• Add stickOrMoveUp keyboard translation option when presenting a viewController. #489 by @tbaranes
• Add scale, scaleTo and scaleFrom animation types. #494 by @phimage
• PaddingDesignable now applies padding to the underlying text, edit, and placeholder rects -- opposed to using a UIView spacer. #492 by @SD10

Bugfixes

• PlaceholderDesignable now applies placeholderColor to Placeholder defined in Interface Builder before checking the placeholderText property. #499 by @SD10
• Fixes bug where Interface Builder doesn't recognize the delegate outlet for UITableView and UICollectionView. #506 by @SD10