[Fixes #618] Replace "create_tile_layers" with "gwc create"

Author: etj

src/geonode_project/br/restore.sh

@@ -73,7 +73,7 @@ if md5sum -c /$BKP_FOLDER_NAME/$NEW_UUID/$BKP_FILE_NAME.md5; then
         # The MD5 sum matched
         django-admin restore -l -n -f --backup-file /$BKP_FOLDER_NAME/$BKP_FILE_NAME.zip --recovery-file /$BKP_FOLDER_NAME/$NEW_UUID/$RECOVERY_FILE_NAME.zip
         django-admin migrate_baseurl -f --source-address=$SOURCE_URL --target-address=$TARGET_URL
-        django-admin create_tile_layers -f
+        django-admin gwc create --force
         django-admin set_all_datasets_metadata -d -i
         echo "-----------------------------------------------------"
         echo " Fixup GeoServer styles"