Update promise-polyfill to 7.0.2 (#350)
Update promise-polyfill to 7.0.2 (#350)

* Update promise-polyfill to 7.0.2

* Create 3.28.2 which updates promise-polyfill but doesn't have breaking changes of the Braintree SDK

* Revert version number change

* Revert version number changes

braintree/braintree-web,braintree/braintree-web,braintree/braintree-web