Update for 1.0.0-rc.0

Publish 1.0.0-pre.1

v0.6.1

Merge pull request jupyterlab#97 from ian-r-rose/v0.6.0

Update to JupyterLab v0.35.

Python package v0.4.1

Merge pull request jupyterlab#90 from ian-r-rose/jlab0.34

Updates for JupyterLab v0.34.

release python package v0.4.0

Fix license name.

v0.3.1