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
bugfix: delegates can now edit also when they where assigned as contributors without edit rights; bugfix: editors can now add multiple additional contributors
Merge pull request #223 from janno42/develop_

bugfixes: delegates can now edit also when they where assigned as contribu...
Merge pull request #224 from fsr-itse/develop

Merge develop into master