Standardized the addition of settings instructions.
Changed all references of local.py to a more generic 'auth project settings file'.
Included basic apache and nginx configs.
Include database creation steps.
Instruct users to restart gunicorn and celery after altering settings.
Include missing TS3 celerybeat schedule.
Added documentation for writing service integrations
Added menu hook documentation
Added notes about installing service modules before following service installation guide
