Try to get weaveDNS status even if router container is missing

weave

@@ -555,7 +555,7 @@ case "$COMMAND" in
         http_call $CONTAINER_NAME $HTTP_PORT POST /connect -d "peer=$1"
         ;;
     status)
-        http_call $CONTAINER_NAME $HTTP_PORT GET /status
+        http_call $CONTAINER_NAME $HTTP_PORT GET /status || true
         echo
         http_call $DNS_CONTAINER_NAME $DNS_HTTP_PORT GET /status
         ;;