0.4

• Added InputController protocol. Now you can configure custom input controller by method with(inputController: )
• Fixed handling of UITextFieldDelegate and UITextViewDelegate on editing
• Return button now does not hide keyboard by default

0.3.1

• fixed init() -> now create keyboard without optional key
• fixed init(optionalKey: Key.Optional?) -> now can pass nil for removing optional key

0.3

• Added support for custom style. Just implement KeyboardStyle protocol (default implementation matches default style)
• Added with(styleFrom: ) method which provides system style of returnKey
• Removed hide button