15 new magic tools.
Stamp rotation feature.
Automatic button size.
Expanded Fill tool, now it can fill with a gradient that follows the shape of the area to be filled.
Improved the rainbow color picker, now it can get colors from more sources like pipette, color mixer...
Bug fixes.

Android changes:
64 bit support
Default saving directory changed from "/mnt/sdcard/TuxPaint" to the external app directory.
That means your drawings will be erased if you uninstall Tux Paint. Please export them prior to uninstalling or ensure they are properly backed up.
