Code tidy.

web/pgadmin/tools/datagrid/__init__.py

@@ -15,6 +15,7 @@ import pickle
 import random
 
 from flask import Response, url_for, session, request, make_response
+from flask import current_app as app
 from flask.ext.babel import gettext
 from flask.ext.security import login_required
 from pgadmin.tools.sqleditor.command import *
@@ -23,7 +24,7 @@ from pgadmin.utils.ajax import make_json_response, bad_request, \
     internal_server_error
 
 from config import PG_DEFAULT_DRIVER
-from flask import current_app as app
+
 
 class DataGridModule(PgAdminModule):
     """