Release v0.3.1
The purpose of this MR is to release v0.3.1 so the most up-to-date version of the code is in the igwn-py37 conda environment which is also being released today @duncanmmacleod.
The purpose of this MR is to release v0.3.1 so the most up-to-date version of the code is in the igwn-py37 conda environment which is also being released today @duncanmmacleod.