* This change abstracts the DatadogStatsClient into a ForemStatsClient.
The purpose of this abstraction is to set the foundation for a subsequent PR that will allow one to use New Relic for recording Forem stats, instead of Datadog, if there is a New Relic configuration found.
This specific change creates an abstraction layer that can be built upon, without changing any actual default behavior. All specs still pass.
* Use delegate instead of explicit methods.
* Delegate instead of explicit methods.
* Fix the error.
* Refactor according to the suggestions in the comments.
* Ooops. Stats work better when all of the code is committed.
* Removing the alias of count to increment since that was done in error.
* Upgrade stripe and stripe-ruby-mock
* Replace .all with .list
* Replace .delete with .detach_source and add tests
* Fix credits spec
* Refactor StripeActiveCardsController to use Payments::Customer and fix specs
* Use the right notice to show feedback to the user