GRKFlickrGrabber # commentsOfPhoto implemented, added GRKCommentsInternal protocol
GRKFlickrGrabber # now returls empty array instead of nil if 0 comments returned from request
GRKFacebookGrabber # comments grab implementation
GRKInstagramGrabber # comments implementation
GRKPicasaGrabber # comments added
GRKServiceGrabberProtocol # declaration for featurePhotos grab method added, GRKFlickrGrabber # featuredPhotos implementation
GRKInstagramm and GRKPicasaGrabbers # featuredPhotos implementation
MissType fix
FLickr featuredPhotos bugfixes
Comments / featuredPhotos are separate protocols now
Demo additions, Picasa fix
GRKDemoPhotosList, instaGrabber # bugfixes
comments/featured erroblock fix
merge with origin master