Use the right copy of confmodel to get the version.
Figure out why the rtd git repo is dirty.
Revert "Figure out why the rtd git repo is dirty."

This reverts commit 81d377b916f2933caf67fee27f7565f6389f03c2.
Strip dirty suffix from version on readthedocs, because they modify conf.py.
Merge branch 'feature/adhoc-fix-version-in-docs' into develop