CircleCI test fix: sometimes expires due to upload timeout in the tes…

…t environment

test_upload.sh

@@ -19,6 +19,7 @@ export ASYNC_SIGNALS=False
 export DATABASE_URL=postgis://geonode:geonode@db:5432/geonode
 export GEODATABASE_URL=postgis://geonode:geonode@db:5432/geonode_data
 export DEFAULT_BACKEND_DATASTORE=datastore
+export DEFAULT_BACKEND_UPLOADER=geonode.rest
 
 # echo "Initialize DB";
 # chmod +x scripts/misc/create_dbs_travis.sh;