FixClock
Clock unregister all apps
Merge branch 'backoffice' of https://github.com/iNowa/MIWA2014 into backoffice

Conflicts:
	CRM/src/fr/epita/sigl/miwa/st/clock/Clock.java
	Caisse/src/fr/epita/sigl/miwa/st/clock/Clock.java
	GestionCommerciale/src/fr/epita/sigl/miwa/st/clock/Clock.java