Fix exception when adding language to group: https://bugzilla.redhat.com/show_bug.cgi?id=1033383
Fix checkstyle
Merge pull request #284 from zanata/rhbz1033383

fix exception when add language in group: https://bugzilla.redhat.com/show_bug.cgi?id=1033383
Disable editor link if locale is missing from project
Merge branch 'integration/master' into FixSuggestEnabledByDefaultLocale