Removed unnecessary variables
#46 Added database tables for events and event-transaction linking
#46 Added Event class
#46 Activity and view
#46 Possible to add event entry
#46 Started added linking option to transaction
#46 Basic linking functionality working
#46 Dialogfragment to add event
#46 Activating and pausing event possible
#46 Added button in mainview to pay to event
#46 Only add transaction to event if it's not added already
#46 Only have one link at a time when editing transaction
Improved layout for event view
Added confirmation fragment when deleting event
Cleaned up Money class
Cleaned up DatabaseAccess class
Cleaned up classes
Cleaned up class
Cleaned up class
Made edittext a bit bigger