chore(docs): remove docs.py

eve-docs is not working on python 3+ atm
chore(heroku): remove heroku specific runtime conf
fix(docs): add email param to create user cmd
fix(auth) - remove passsword from auth
chore(sync eve) - remove caching test as it got removed from the framework. Item level caching is tested in Eve
fix(ingest): save ingest resource also in mongo
Merge remote-tracking branch 'adrian/chore-eve'
doc(auth): add info about auth_user resource