Integrate a semi-accurate FPS display option into settings
Updated Chinese - https://github.com/reicast/reicast-emulator/issues/275
Clean up the FPS view to support variable text size change
Update the region values to specify the game region codes

@ppsspp213 change adjusted to work with the way the application
displays and uses the array values.
Update the about display to handle beta versions correctly
Update all language translations with new revision text item
Enable unstable optimization by default to prevent crackling
Merge pull request #278 from LoungeKatt/master

Integrate a semi-accurate FPS display option into settings