Bug 1078297: Fix localized number formatting helper for jinja templates
Merge pull request #2355 from pmclanahan/fix-localized-number-date-formatting-1078297

Bug 1078297: Fix localized number formatting helper for jinja templates
Bug 1054437 - Get Involved redesign
Add Mozillian stories, form updates
Responsification in progress
Update story strings
Remove maps and country switcher
Bug 1054437: Add newsletter form to new contribute pages.
Bug 1054437: Make new contribute form work.
Do not preselect country in get involved form.
Some form tweaks

Better info icon placement
Some error styling
Show area for selected category on pageload
Responsification
Add event data to contribute pages.

WIP
Bug 1078297: Need localized number formatting helper for jinja templates
Bug 1078297: Change l10n_format_* helpers to use lang from context.
Bug 1078297: Fix localized number formatting helper for jinja templates
Responsification