Added back readme.
refactored res names.
Removed input style and having children add states to parents. This makes it so any editText background can be put on or non at all and have it act properly. Also some minor layout enhancements.
Removed bad import of inputStyle to PKFragment
Made fieldholder style the system default edittext style.
Removed lag when entering a credit card number.
Fixed the cursor jumping when the last number in the last group gets moved to a previous group from a delete action.
Addressed comments.
This is a pure refactor to clean up the TextWatcher in the CardNumEditText class.
Renamed isInputComplete method to isCardNumberInputComplete.
The keyboards next button will now trigger text validation.
User can now move around in the ExpirationEditText