(bug 50802) Create new user groups on sh.wikipedia

Creating new user groups: 'autopatrolled', 'filemover',
'patroller' and 'rollback' per community request, with
default user rights for those groups. Note: the
'autopatrolled' user group /does not/ have the 'patrol'
user right (yet).

Bureaucrats are able to add and remove users from all
those user groups, administrators are able to add to all
and remove from all except 'autopatrolled'.

Bug: 50802
Change-Id: Iaebb5dd8230dade14c4aea2a3e41650bc515f93a