2.1.5
Fixes various issues as mentioned in pull #62:
- Added support for the delete key (and modified comments to differentiate between delete and backspace)
- Allow negative sign to be inserted at beginning of existing numbers
- Remove negative sign when value changes to "-0.00" (like when deleting the "1" in "-1.00")
- Don't remove negative sign when deleting numbers to the right of the decimal
- Allow more standard browser hotkeys like Ctrl+P, Ctrl+S, Ctrl+F, Ctrl+Z, F3, F5, F11, etc. within fields
- Properly initialize 'data.init' value when prepopulated via browser autofill or F5
- Consistent use of tabs for indenting code and consistent equality operators