Switch over production app to production Elements

[ ] Tell PMs you're going to do this and ask when the golive should be
[ ] Get Elements login
[ ] Make API user
[ ] Put API user keys in Lastpass
[ ] Whitelist IPs in system console
[ ] Note API endpoint URL (make sure it is for 5.5 and it is https)
[ ] Issue a (non-destructive but privileged) API call from heroku run python manage.py shell to ensure that your IPs can pierce the firewall
[ ] (once that works) update config files and ENV to use production database
[ ] Tell people you're about to go live, with a window
[ ] Switch over
[ ] Put production settings.DEBUG to False
[ ] Tell them you did it

MITLibraries / solenoid