switching from try get .. to get_or_create, defaults in model class
coalescing POST processing for Meldungen SEEMS to work; more testing necessary

Bug in the CSS libraries? button presses reported multiple times? and bad readability anyways...
fixing confusions in the initial data fixture ; permissions did not work for studenplan
model adapted to allow Stundenplan zuteilung saved directly
first semi-working version to deal with stundenplan zuteilungen
easier dumping of current data base
first bug fixes
ukstrukturiert: stundenplaubersicht wird nicht separat gebraucht