Back Button of PlanActivity now working
Merge branch 'master' into alcros-dev
Fixed charset problems by moving string to strings.xml
Added Logoutconfirmation Setting
Added reload Button in PlanActivity
Menu also in PlanActivity avaiable
Tickers now shown in 1 Toast
Fixed home Button in InfoActivity and SettingsActivity
Merge branch 'master' into alcros-dev

Conflicts:
	Vertretungsplan/res/values/strings.xml
Fixed bug with back Button
Switched API to POST and added stats collection
Updated stat collection and removed unused import