removed jquery conflict mode

Change-Id: Ib30ac0881c385a4c9986fc382d7f465e419c4e69
cleaned up several minor inconsistencies in the db schema
removed the teacher responsibilities table as it was never directly used

Change-Id: I1691d99068bd59f5211ce3899d96b8f27ec9c375
Merge "cleaned up several minor inconsistencies in the db schema removed the teacher responsibilities table as it was never directly used"
fixed test

Change-Id: I08ee4fb14ddd331b0df025c076b7cca44ddd710d
Merge "fixed test"
finished db and form consistency work

Change-Id: I329eafbe91ad7dcb9f1b7255d035241619aade75
Merge "finished db and form consistency work"
cleaned code

Change-Id: Id90fb13fbf3b3d1be23145c3dc453baf04d8c9f1
changed two icons in children.php
added "geschützte Leerzeichen" for filters in language
some (litte) changes in consumption.scss

Change-Id: Iae8c2a2e488c9d684d2a668176a2369ddf1944c7