TODO
	- stop a game in the middle
	- bonus if clean sweep at end of round
	- remove bonus text if at end of round
	- bonus for x or more tiles
	- fix help bug
	
0.8.2
        - bug fix that caused a crash when redrawing the screen
	
0.8.1
	- added dead block that can't be clicked, occurs rarely
	- converted wav files to ogg
	- added falling block animation when game over
	- game over text
	- added sound volume control
	- removed hard coded games for data dir
	- vibrate board on explosion
	- basic help screen
	- added man page
	
0.8
	- complete rewrite in SDL and C, dropped C++ and Qt