Documented lunchlauncher.
Merge remote-tracking branch 'origin/master'

Conflicts:
	lunchlauncher-dm/src/main/java/de/laudert/lunchlauncher/domain/Lunch.java
	lunchlauncher-dm/src/main/java/de/laudert/lunchlauncher/domain/Restaurant.java
Optimized imports of lunchlauncher-dm.