Improved the phone number editing during registration
- Fixed a crash where an offset wrapped around when deleting the opening bracket
- Backspacing now skips over formatting characters
- Cursor position is maintained more accurately when reformatting
- Added a few utility methods
- Also fixed a test not having "test" as a prefix, causing it not to run
//FREEBIE
Fixed single-character cuts being mistaken for backspace presses
//FREEBIE