Adding default alarm sound resource
Adding multimedia to Qt modules configuration
Adding class Sound
Sound playing simplified
Adding missing Q_OBJECT macro in Sound class
Adding setSound method to AAlert
Adding sound play in TickTimer
Initializing _sound to NULL in AAlert
Adding sound to sample timer in main
Merge branch 'sound-alert'

Conflicts:
	AlertMe.pro
	src/Main.cpp
Applying architecture changes to merged sources