removed collection chunking as this seems to be troublesome without
audit
#196 - Terminology Check fails
There was a synchronization issue in OBRRepositoryConnector.
That delayed the startup quite a bit and DS played it save and ended up
not starting some services
closes #199 - Remember current URL when signing in and
redirect back to that page
Please note that this does not work when you log in threw a cookie 
(if you never see the login page)