codecation/trailmix — pull request #113 by chrishunt (2014-10-10 04:27:54+00:00)
Title: Add transition for back-filling Stripe IDs

This adds a transition for back-filling all existing users with their Stripe customer ID.

We should not run this until https://github.com/codecation/trailmix/pull/112 has been deployed.

The transition can be performed in the console with:

```ruby
> BackfillStripeIdTransition.perform
```