UpdateTool & Helpers class
Reimplemented time check
Merge remote-tracking branch 'GSGB-App/dev_sebrut' into dev_fireozone

Conflicts:
	src/de/gymbuetz/gsgbapp/MainActivity.java
Renamed Helpers to HelpFunctions in order to avoid collisions
Update & download of xml files, error in populateClassSpinner()
Fixed startup error
Minor changes
Fixed loading issue, still wont start on real devices
Finaly fixed loading issue. Caused new bug..
Many changes

-App now starts
-Fixed layout
-target Sdk is now 19
-Daynumbers starting at 0 for Monday
-reordered files
-for now, the class is not changeable
-more
Fixed SheduleFragment in landscape orientation
XMLs
Tried Reload, does not work.
Reload is now working, made new and simple Preferences
Changed Version to 0.5
Merge pull request #24 from Fireozone/dev_fireozone

Stable build from dev_fireozone