fix maintainers list not updated after add/remove: https://bugzilla.redhat.com/show_bug.cgi?id=1097470
Fix groups list view on obsolete item
Fix removing maintainers to update maintainer list
Merge pull request #442 from zanata/rhbz1097470

fix maintainers list not updated after add/remove
Merge branch 'release' into integration/master
Merge pull request #443 from zanata/fix-group-obsolete

Fix view obsolete group in groups list
Merge branch 'release' into integration/master