ran python-modernize and isort on files mentioned in INCR-371

openedx/core/djangoapps/theming/storage.py

@@ -2,6 +2,8 @@
 Comprehensive Theming support for Django's collectstatic functionality.
 See https://docs.djangoproject.com/en/1.8/ref/contrib/staticfiles/
 """
+from __future__ import absolute_import
+
 import os.path
 import posixpath
 import re