bump version number up

Kully · Kully · commit f2ba9129ebd4 · 2018-02-19T12:50:02.000-05:00
diff --git a/plotly/version.py b/plotly/version.py
@@ -1 +1 @@
-__version__ = '2.4.0'
+__version__ = '2.4.1'
