Cleaned up some warnings
Merge remote-tracking branch 'origin/master'
We have invitations! (+ graphing stub)
Merge remote-tracking branch 'origin/master'

Conflicts:
	Chores/src/il/ac/huji/chores/AppSetup.java
	Chores/src/il/ac/huji/chores/ChoresMainActivity.java
	Chores/src/il/ac/huji/chores/Constants.java
We have invitations! (+ graphing stub)
(cherry picked from commit b769ff3ff7628be87159791760ba40654177c3e2)

Conflicts:
	Chores/src/il/ac/huji/chores/ChoresMainActivity.java
We have invitations! (+ graphing stub)
(cherry picked from commit b769ff3)
We have invitations! (+ graphing stub)
(cherry picked from commit b769ff3)