Import SwG button stylesheet (ampproject#15566)

adding Amazon Publisher Services Callout URL (ampproject#15537)

Moving the amp-story-consent JSON configuration. (ampproject#15473)

Fix actions in amp-story-consent (ampproject#15435)

* Fix actions in amp-story-consent.

* Fix comment lint.

make images in bookend take 100% width and height, use fit cover. (am…

…pproject#15350)

Revert "🐛 Add last check time stamp to the polling url to bypass cach…

…ing (ampproject#14662)" (ampproject#15358)

This reverts commit 39c5af8.

 ✨ New ad type: WPMedia (ampproject#14512)

* WP Media Ad - First version for testing

* Linting.

* Adding some required info to MD files.

* Lib address change.

* Implemented 'window.context.renderStart'.

 ✨ New ad type: WPMedia (ampproject#14512)

* WP Media Ad - First version for testing

* Linting.

* Adding some required info to MD files.

* Lib address change.

* Implemented 'window.context.renderStart'.

Update FIE's unused privates (ampproject#15069)

They juste needed the `@restricted` annotation.

Update gulpfile.js