Add Coupon support

[Awea]

No description provided.

[coveralls]

Coverage decreased (-0.6%) to 19.635% when pulling 38a1b8a on Awea:2.0 into 328dbd0 on code-corps:2.0.

[begedin]

@Awea Looks good. Most of our testing is lacking, so we won't bug you with that, but there is one tiny test which can be written.

In test/stripe/util_test.ex, we can assert that the object_name_to_module/1 function is working with coupons:

assert object_name_to_module("coupon") == Stripe.Coupon

The order is alphabetized, so putting it between card and customer should be enough. I'd do it myself, but you're using your own fork. Once that's done, we can go ahead and merge this. Just don't forget to then squat your commits into a single commit. You can even amend the change into the existing commit.

[coveralls]

Coverage decreased (-0.6%) to 19.635% when pulling ac22758 on Awea:2.0 into 328dbd0 on code-corps:2.0.

[Awea]

Most of our testing is lacking, so we won't bug you with that, but there is one tiny test which can be written.

@begedin Yeah I saw it when I checkout 2.0 and run the tests ^^ Anyway it's a good library, it's pretty simple to add a Stripe resource! I've added the assertion.

…I'd do it myself, but you're using your own fork.

There is another way to do it? I'm not used to pull-request.

[begedin]

There is another way to do it? I'm not used to pull-request.

If you're a project contributor, then you can make a branch on this repo and make a PR out of that. You did it correctly, the only way you could.