mojito: use the async context when downloading images async
mojito: use the async context when downloading images async

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