Fixes and new features

- Now compiles and works on cpp targets
- Added command shortcuts
- FlxG.addCommand now works propertly with FLX_NO_DEBUG
- The game auto-pauses when the console has focus now
- You can now use escape to un-focus the console
- The cursor won't jump to index 0 of the textfield anymore when
browsing through the command history
- watchMouse and create commands fixed (use system cursor pos)
- set command now works properly