Added Settings and Infopage
Fixed a lot of errors
Merge remote-tracking branch 'origin/master'

Conflicts:
	Vertretungsplan/res/values/strings.xml
	Vertretungsplan/src/com/inf1315/vertretungsplan/LoginActivity.java
	Vertretungsplan/src/com/inf1315/vertretungsplan/PlanActivity.java
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master' into alcros-dev
Remove unused imports
Merge remote-tracking branch 'origin/master'
Fixed wrongly merged branch
Merge remote-tracking branch 'origin/master'