fix #213, remove requirements engineering documents, they are in the wiki now
Update merge_users.py

fixing user merge
Better wrapping for multiselect, fixes #219
Merge pull request #223 from janno42/develop_

bugfixes: delegates can now edit also when they where assigned as contribu...
fix semester redirect, should fix #226
add missing migration and remove broken workaround, fixes #221
Stupid typo
fix id pattern and id updating when delete, fixes #225
fix redirect bug for contributors without edit rights: only redirect to contributor view for editors and delegates