Crash fix

Fixed crash while using DefaultTextInputFormatter after entering patternSymbol (“#” by default).

Solves:
#39

Allow backspacing group character and send editing events

• Allow grouping character to be backspaces by moving the cursor one index to the left when the user attempt to backspace this character
• Fix issue where the text input change would not be sent when the .content property of TextInput changes

Solves:
#8

Bugfix on iOS 10 when resigning first responder

Fixes a big causing the input field to become empty when resigning first responder.

Solves:
#4

Public MulticastDelegate

Since the generated initializer is 'internal', users of the library were unable to initialize MulticastDelegate which was also causing them to be unable to create their own TextInput.

Swift 4.2 support

• Update to Swift 4.2
• Fix issue for Xcode 10 with duplicate Info.plist

Bugfix.

Fixed crash when use autolayout. Code refactor.

Structure refactor.

Moved example and framework to separate projects.

Simple text formatting in Swift.

Include formatter. Added usage to readme file. First release for pods.