add exporting of thumbnails when exporting entry
add exporting of thumbnails when exporting entry

DBezemer/server,DBezemer/server,kaltura/server,DBezemer/server,DBezemer/server,kaltura/server,DBezemer/server,kaltura/server,kaltura/server,kaltura/server,DBezemer/server,DBezemer/server,DBezemer/server,kaltura/server