Added methods to get fields of study and skills
Added support for transactions (managed connections) and fixed all known bugs
Added filter option for getAllIdeas
fixed and improved filter option for getAllIdeas
Fixed getAllIdeas, fixed 'time lost' problem, Role enum to class
GetAllIdeas fix
Merge branch 'database' of github.com:utwente-di/di18 into Tests
Completed TestComment, no more testDBConnectivity