[Bug 952429] Add holiday calendar .ics files and json metadata
[Fix Bug 952429] Add Lightning holiday calendar index page
Make subject line of contribute email for end-users localizable.

Keep the existing filterable subject lines for Mozilla contacts.
Fixes 854992
Bug 912055: Update basket-client
Bug 912055: Support invalid email errors from basket.
[fix bug 970752] phone provider content for non-JS users on firefox os page has poor copy and old link
Redirect all Firefox 'details' pages to bedrock
Bug 960651
For all locales, any URLs for /firefox or /mobile
with /[version]/details/ will redirect to a localized
general localized upgrade page in bedrock
Merge pull request #1690 from sgarrity/bug-960651-details

Bug 960651 Redirect all Firefox 'details' pages to bedrock
Bug 957711 followup, fix NoReverseMatch error at /firefox/new/
Bug 860865 followup, fix 404s on firefox/*/system-requirements
Merge pull request #1698 from kyoshino/bug-957711-mobile-404

Bug 957711 followup, fix NoReverseMatch error at /firefox/new/
Remove /b/ from 302 redirect
Fix bug 944171 - Add Albanian community to contact page
Merge pull request #1695 from craigcook/bug-944171-add-albania-community

Fix bug 944171 - Add Albanian community to contact page
Merge pull request #1697 from kyoshino/bug-860865-sysreq-redirect-404

Bug 860865 followup, fix 404s on firefox/*/system-requirements
Fix order of /newsletter/ redirects for Bug 959310
Merge pull request #1700 from sgarrity/bug-959310-newsletter-redirects

Fix order of /newsletter/ redirects for Bug 959310
Add redirects for v2.x through v9.x release notes
Bug 971840
Merge pull request #1696 from sgarrity/bug-971840-archive-release-notes

Add redirects for v2.x through v9.x release notes
Bug 972993 - Change email recipient for "Visual Design" inquiries from contribute.mozilla.org