Video (vid-501): show error message if wgAllowNonPremiumVideos is false when adding non premium videos
VID-502 Disable youtube tags on wikis that have wgAllowNonPremiumVideos == false
Video (vid-501): WikiaVideoAdd - show error message if wgAllowNonPremiumVideos is false when adding non premium videos
Merge pull request #1045 from Wikia/VideoSprint27-1-VID-502-NoYoutube

VID-502 Disable youtube tags on wikis that have wgAllowNonPremiumVideos ...
Merge pull request #1051 from Wikia/vid-501

VID-501: Error messages for when users try to add non-premium video to a premium video only wiki
Merge pull request #1055 from Wikia/VideoSprint27-1

Video sprint 27.1