Add jupyter to optional tox deps.

Author: theengineear

tox.ini

@@ -58,6 +58,7 @@ deps=
     pytz==2016.10
     optional: numpy==1.11.3
     optional: ipython[all]==5.1.0
+    optional: jupyter==1.0.0
     optional: pandas==0.19.2
     optional: scipy==0.18.1