Add definition for database in production.

[icarito]

Make sure these boxes are checked before your pull request is ready to be reviewed and merged. Thanks!

• [ ] tests pass -- rake test
• [ ] code is in uniquely-named feature branch, and has been rebased on top of latest master (especially if you've been asked to make additional changes)
• [ ] pull request are descriptively named
• [ ] if possible, multiple commits squashed if they're smaller changes
• [ ] reviewed/confirmed/tested by another contributor or maintainer

Please be sure you've reviewed our contribution guidelines at https://publiclab.org/wiki/contributing-to-public-lab-software

Thanks!

[jywarren]

Ah, need any help with this one?

[icarito]

Yeah I've no idea why it's not building - it used to build fine. The files I added aren't even used in testing.

[jywarren]

Just a note that I'm renaming the master branch to main and this will have to be merged into main as well.