bump up version to 0.4.2

Merge pull request #85 from ITC-CRIB/update-remote

Push command

Merge pull request #85 from ITC-CRIB/update-remote

Push command

Merge pull request #84 from ITC-CRIB/jupyterlab3

Changes for release 0.3.1

Merge pull request #83 from ITC-CRIB/jupyterlab3

New release JupyterLab 3.6

add citation file

Merge pull request #67 from ITC-CRIB/release/v0.1.0

Release/v0.2.0.b.1