MH-7526 aspect ratio width/height now changing as well when custom fields are changed by the user

git-svn-id: http://opencast.jira.com/svn/MH/trunk@13646 e6edf6fb-f266-4316-afb4-e53d95876a76
MH-9369 -- show alert if submit fails

git-svn-id: http://opencast.jira.com/svn/MH/trunk@13647 e6edf6fb-f266-4316-afb4-e53d95876a76