s/request.locale/request.LANGUAGE_CODE/
[bug 846756] Add A/B test for product ordering on /products

?b returns the first two products in reverse order.
[bug 839157] l10n remaining email templates

* l10n-ifies the remaining email templates
* adds locale-aware emails_with_users_and_watches
* add rest of email templates to DOMAIN_METHODS
Refactor email sending in wiki

I created a locale-aware emails_with_users_and_watches in email_utils,
so this switches a bunch of the wiki events code to use that.
[bug 839041] Fallback to top articles when there are no search results.
Update docs to reflect our current ES version.
[bug 851070] Fix context creation

This puts the things in the context that need to get rendered in
the email template.
[bug 810529] Implement new get involved page
Limit top contributors to 10 on mobile.
Add media/css/landings dir.
Make the empty directory more like media/css/mobile
Fix align for username-rule in AAQ-register
add my name to CONTRIBUTORS
[bug 851532] Make OS and Fx version selectors behave more like select boxes
[bug 839139] Convert last email to jinja2 and use jingo.Loader.
[bug 775316] Upgrade to jingo 0.6.1 and replace jingo.render calls.
Some cleanup
[bug 775316] Relplace jingo.render in new get involved views.
Exclude waffle app from jingo loader.
[bug 825955] Locale filtering for KB media gallery