[939781] Flip more switches for Thunderbird.
[Bug 968904] Showfor: Split platforms by product.

Before, all platforms were considered equal for things like filling in
select boxes, which causes weird things like forcing "Firefox for
Desktop on Android" if you visit a Firefox site on Android, which can
break a bunch of article content.

To fix that, this commit splits out the platforms by product, so that
the select box filler can behave more intelligently.
Put out the fire
Add help text for Product images.
Skip get_customercare_stats() cronjob on stage.
[bug 95262] Added django-statici18n to vendor.
[bug 952642] Added django-appconf to vendor.
[bug 952642] Add django-statici18n to project.

I had to convert settings.LANGUAGES to a tuple as django
expects/wants and created LANGUAGES_DICT to replace it.
Update six to version 1.4.1.
[bug 952642] Use the static i18n js. Compile on deploy.
Fixup: static jsi18n directories are lowercase.
Fix js error. s/typof/typeof/
[bug 969291] Save solver in question metadata and display on question page.
[Bug 966337] Localize TOC header at render time.

Uses a new version of py-wikimarkup that supports setting the TOC string
at render time, and passes in a localized version for each article.
[bug 975272] QuestionMetadata.value is a string, not long.
Updated db strings.
[bug 975516] Upgrade django-extensions to 1.3.3.
[bug 967053] Add product picker to l10n dashboard