Sound engine changed to Phonon (compiles but plays nothing)
Sound is now playing
Music works
Replacement of the slider and the timer by Phonon internal ones
Removal of the QCustomThread class
SDL removed from the configure file
QSoundEngine moved to misc
Filtering of audio files in the item file dialog
Removal of the references to SDL
Modification of the link between main window and sound engine
Correction of the documentation
Search for magic.mgc in the installation directory if not at default
location
Merge branch 'test_phonon'