new WikiaValidatorImageSize to validate an image sizes
quick fix for AIM in WMU
extracted some logic to new public function getFileFromName()
first version of image size validator
added new messages for image size validator
removed conflicts after rebasing with dev
removed mocked data
message change
added sponsored image filed in wikia's picks form
first attempt to display saved sponsored image
small php warning fix
added new field and connected with new validator in feature videos
Merge branch 'bugid-96111' into dev