Merge pull request #3 from WOYM/master

Update
#47 | Funktionality implemented. Used generic-messages wherever possible.
Merge branch 'master' of https://github.com/tihansen/timetable
Merge pull request #4 from WOYM/master

Update
Removed unused imports
First command in use
Zwischencommit
Merged
#110 | Add- and Updatecommand are now used in the controllers except for the LocationController+
Merge pull request #107 from tihansen/master

#47 | #110
kommentare in späteren pull request beachten, sonst review passed