Packaging for release 13.0.0

Packaging for release 12.5.0

Packaging for release 12.4.0

packaging for release 12.3.0

Packaging for release v12.2.1

Packaging for release v12.2.0

Add `ShopifyAPI::Context.host` to allow for localhost support (Shopif…

…y#1017)

* Allow config of host_scheme for localhost

* is_https context boolean for easier validation

* always https for oauth

* revert non callback addresses

* no more config, set scheme from HOST["ENV"]

* host from config, ENV variable, or deduced from name

* add test for localhots host

* always https for linking back to shopify

* no more double negative conditional

* Changelog / remove ngrok tunnel requirements from README

Version 12.0.0

Packaging for release 11.1.0

Merge pull request Shopify#993 from Shopify/bump-to-11.0.1

Packaging for release 11.0.1