auth: improve API key documentation for users Add a warning about API key implications on the actual My Accounts/ API keys page where users are likely to see it. No warning is added to the admin page equivalent, under the assumptions that admins can be trusted to either know what API keys are (or at least not mess around with them when editing other users), and thus don't need the admonishment.

# requirements.txt file for use as "pip install -r requirements.txt" as a
# readthedocs compatible alternative to "pip install -e ." which is a working
# alternative to "setup.py develop" which doesn't work with Mercurial 3.7
.