flickr: check tokens and clean up capability logic
flickr: check tokens and clean up capability logic

lcp/libsocialweb,GNOME/libsocialweb,GNOME/libsocialweb,lcp/libsocialweb,lcp/libsocialweb,ThomasBollmeier/libsocialweb-flickr-oauth,ThomasBollmeier/libsocialweb-flickr-oauth,GNOME/libsocialweb,ThomasBollmeier/libsocialweb-flickr-oauth