Add support for Fennec releases

[Natim]

No description provided.

[Natim]

@pocmo is this something you would be interested in? What are the checks you would like us to make for Fennec releases?

[pocmo]

I have no clue what this is - maybe we should talk on IRC. :)

[sylvestre]

Rémy, RM manages Fennec. @pocmo manages focus (with Johan and myself)

[Natim]

For fennec the locale list is here:

• https://l10n.mozilla-community.org/stores_l10n/api/v1/fx_android/supportedlocales/release/

Otherwise the checks are the same as for Firefox Desktop (without balrog) except the URL for archive which is mobile instead of firefox and the download link is google play

• Archive
• Release Notes (https://www.mozilla.org/en-US/firefox/android/52.0.2/releasenotes/)
• Security advisories (same as Firefox Desktop)
• Download Links (Google Play instead of bedrock)
• Product details (https://product-details.mozilla.org/1.0/mobile_versions.json)

[Natim]

Make sure the What's new section is visible on https://play.google.com/store/apps/details?id=org.mozilla.firefox