Hide features form/info when we don't have a current_version (bug 875091)
Get feature detection for packaged apps

Because devhub.js
Unstick locale in category lookup. (bug 874926)
allow localize theme name/summary (bug 855617)
migrate theme summary to description field
Merge pull request #780 from diox/get_features_500

Hide features form/info from edit pages when we don't have a current_version
Invert logic for buchet search
Added feature profile filtering to featured apps api (bug 875009)