version bump --> 1.6.15 (widget save + to_dataframe)

theengineear · theengineear · commit 16f80d63fe5e · 2015-04-09T02:34:55.000-04:00
diff --git a/plotly/version.py b/plotly/version.py
@@ -1 +1 @@
-__version__ = '1.6.14'
+__version__ = '1.6.15'
