Fixed bug U4-6004, MediaService.GetMediaByPath now returns IMedia for paths containing 'x' and '_'
isResized now determined by regex
Merge branch '7.2.0-U4-6004' of https://github.com/21robin12/Umbraco-CMS into 21robin12-7.2.0-U4-6004
Merge branch '21robin12-7.2.0-U4-6004' into dev-v7