changed some datatypes and NULL Pointers
switch to sdl2
changes needed to compile on windows
fix bug in hearFaults
more changes for windows
some minor code improvements
use Glib::mkstemp instead of tmpnam
cancle button for settings dialog and some code improvements
Improved error handling for lilypond
make progress dialog unclosable
Added errormsg to gui
0.1.5
Merge branch 'master' into debian
changes for 0.1.5