Improved the gamepad handling: Now it does not trigger multiple events
anymore if the player holds a button, he has to release it and press it
again
Merge branch 'master' of https://github.com/dbltnk/unexpected-rpg.git
Toggle fullscreen mode by pressing ENTER
Added the AudioPlayer class to play back Wave and MP3 files
Merge branch 'master' of https://github.com/dbltnk/unexpected-rpg.git
Music and sounds can be played and stopped