Stripe with environmental variable errors - don't publish yet.

This looks like it's the problem here.

Three small problems:

1 - this file shouldn't be checked in.  I think it should also be in the config folder, not just the base directory.
2 - it looks like the lines with the keys are commented out (start with a hashtag)
3 - the key in here is different then what you're pulling out of the ENV.  You're asking for `ENV['PUBLISHABLE_KEY']`, but you're calling it in this file: `stripe_publishable_key`, the keys should be the same.

We can talk more about this in our 1-on-1 session.