Added Database operatations.
Database is working now
Added Activity for Database but it is not working properly
Separated database code
Added connection tables
Changed the Adapter classes and added the right database enquiry to the
activities
Added database operations which allow to get all exercises of a set and
all sets auf a routine
Linked exercises to sets and sets to routines(Test Data)
Improved deletion of Routines, Sets and Exercises
Merge remote-tracking branch 'origin/Database'

Conflicts:
	WorkoutRoutineApp/AndroidManifest.xml
	WorkoutRoutineApp/bin/AndroidManifest.xml
	WorkoutRoutineApp/bin/WorkoutRoutineApp.apk
	WorkoutRoutineApp/bin/classes.dex
	WorkoutRoutineApp/bin/resources.ap_
	WorkoutRoutineApp/src/de/martinswoboda/workoutroutineapp/MainActivity.java
	WorkoutRoutineApp/src/de/martinswoboda/workoutroutineapp/RoutineActivity.java