handle 503 errors from Twitter by sleeping for 60 seconds
handle 503 errors from Twitter by sleeping for 60 seconds

ericscartier/twarc,DocNow/twarc,hugovk/twarc,miku/twarc,kevinbgunn/twarc,remagio/twarc,kevinbgunn/twarc,edsu/twarc,miku/twarc,ericscartier/twarc,remagio/twarc