added new content ressource method in ui content, all other methods are deprecated
prepared validSurfer property in ressource for group types
surfer status box added ressource handling from test scenario
gallery page added ressource handling from test scenario and new group surfer status property
gallery upload box added ressource handling from test scenario
gallery teaser box use new ressource validSurfer property
gallery folders box added new ressource handling from test scenario
gallery folders use new ressource validSurfer property
gallery use new ressource validSurfer property and new ressource method
gallery data set groupSurferStatus a preparation for another ressource extension