Fix maintainers list in project page: https://bugzilla.redhat.com/show_bug.cgi?id=1033374
Fix wrong label display in version page to join group
Merge pull request #281 from zanata/rhbz1033374

fix maintainers empty list: https://bugzilla.redhat.com/show_bug.cgi?id=1033374
Merge pull request #282 from zanata/labelChangeOnProjectActions

Fix wrong label display in version page to join group