extended notifications data
ressource added invalid property and some corrections
content data corrected check for invalid ressources and missing ressource parameters
moved content group object to relations data class
fixed current image gallery for comments on cached gallery
gallery folders some corrections
gallery teaser fixed ressource handling
gallery upload fixed error message handling
comments box use ressource object for cache definitions
comments use ressource object
comments data use ressource object
comment dialog use ressource object and extended notification handling
readme updated todos