make offline.py importable

Author: chriddyp

plotly/__init__.py

@@ -28,5 +28,5 @@
 
 from __future__ import absolute_import
 
-from plotly import plotly, graph_objs, grid_objs, tools, utils, session
+from plotly import plotly, graph_objs, grid_objs, tools, utils, session, offline
 from plotly.version import __version__

plotly/offline.py

@@ -3,7 +3,9 @@
     without connecting to a public or private plotly enterprise
     server.
 """
-import utils
+from __future__ import absolute_import
+
+from plotly import utils
 import uuid
 import json
 import os