Fixed #636. Insert general url_name_args attribute to some generic views in utils.views.
motion csv import
Fix and update motion csv import.
Merge pull request #645 from normanjaeckel/Motion_CSV_Import

Motion csv import
Merge pull request #639 from normanjaeckel/Url_name_args

Fixed 'Can't create agenda item of a motion'
Motion identifier setting and versioning.

Now the view decides, whether to setup a new version or not. Automatic identifier setting is the default. Also some fixes of the motion save method.
Fix after review No. 1

Author:    Norman Jäckel <my-git-mail@normanjaeckel.de>
Fix after rebase