[bug 889928] Create locale metrics page.

Moved the wiki votes graph to it from the kb/l10n dashs.
[bug 889928] Graph the l10n % and # contributors.

(on the locale metrics page)
[Bug 901575] Add query params to questions feed.
[Bug 900869] Step 1. Fix non-English highlighting.
[Bug 900869] Step 2. Fix non-English highlighting.
[Bug 897096] Use a custom showfor header on mobile
[Bug 897096] Add missing gettext calls.
[bug 904554] Add boosts for document queries
[bug 897047] Change email with persona
[bug 904443] Fix highlighting

This reinstates the "show the whole thing" highlighting.

Because we're showing the whole field highlighted, "fragment_size"
has no effect, so I nixed that.

Additionally, there's no "discussion_content" field so I nixed
that, too.

On top of that, to prevent me from trying to fix this again in the
future, I updated the comment so that it correctly represents
what should be happening in the code.
[bug 904714] Upgraded to django 1.4.6.
Fix search results target
[bug 899071] Hide related questions for non AAQ locales
[bug 893328] Related articles should have same product