plotly 3.1.1 on Python PyPI

[3.1.1] - 2018-08-10

This release is a minor bug-fix update to version 3.1.0

For use with JupyterLab, the following versions of the following packages
must be installed:

Python Packages
- plotly==3.1.1
- ipywidgets>=7.2
- notebook>=5.3
- jupyterlab==0.33
JupyterLab Extensions
- plotlywidget@0.2.1
- @jupyter-widgets/jupyterlab-manager@0.36
- @jupyterlab/plotly-extension@0.16

Updated plotly.js to version 1.39.4.
- This is a bug-fix release of plotly.js
- See the plotly.js CHANGELOG for more information

Fixed error in validation of configkeys
plotly/plotly.js#1065
Fixed error in presentation of named colorscales
plotly/plotly.js#1089
Fixed numerical precision error when using plotly.tools.make_subplots
to create figures with a large number of subplots
plotly/plotly.js#1091
Fixed problem that prevented the use of the .update method to initialize
an array property (e.g. layout.shapes)
plotly/plotly.js#1091
Fixed FigureWidget problem causing scroll zoom on 3D plots to stutter
plotly/plotly.js#1094
Fixed invalid tickmode property in matplotlylib
plotly/plotly.js#1101