Libraries: docs/conf.py gives version as "1.0"

[dhalbert]

All or nearly all the library docs/conf.py files contain this:

# The short X.Y version.
version = "1.0"
# The full version, including alpha/beta/rc tags.
release = "1.0"

This incorrect 1.0 version does not show up too many places, but it does show up in the HTML <title> text, which shows up in search engine results, e.g.:

There are various ways to fix this: https://stackoverflow.com/questions/26141851/let-sphinx-use-version-from-setup-py is one discussion I found.

To fix this would require an all-library patch, and also https://github.com/adafruit/cookiecutter-adafruit-circuitpython needs to be fixed.