Merge pull request #186 from plotly/session-module

Session module

Author: theengineear

plotly/__init__.py

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