Sublime Text specifications

- Keyboard input while dragging a selection will cancel the drag
- Improved backspace behavior when use_tab_stops and translate_tabs_to_spaces are true
- Improved shift+drag behavior
- Improved double click drag select behavior
- About Window shows the license key details
- Fixed a Goto Anything issue where pressing backspace could scroll the overlay incorrectly
- Fixed a crash triggered by double clicking in the Goto Anything overlay
- Fixed incorrect window position when dragging a tab in some scenarios
- Added missing toggle_preserve_case command
- word_wrap setting accepts "true" and "false" as synonyms to true and false
- OSX: Fixed System Preferences menu not working
- Linux: Added support for mice with more than 5 buttons
- Linux: Fixed an occasional graphical glitch when running under Unity