Merge pull request #662 from pmclanahan/bug-840814-redirect-bad-firstrun-whatsnew-pages

Bug 840814: Redirect bad whatsnew and firstrun URLs.
Bug 840814: Also redirect incorrect firstrun|whatsnew URLs without locale.
Merge branch 'bug-840814-redirect-bad-firstrun-whatsnew-pages'
Update video in flicks promo (Bug 842314)
Bug 817742 - Responsify mozilla.org/persona pages
Merge pull request #663 from sgarrity/bug-842314-flicks-update

Update video in flicks promo (Bug 842314)
Merge pull request #664 from sgarrity/bug-817742-responsive-persona

Bug 817742 - Responsify mozilla.org/persona pages
Add new download button styles from Bug 795976
Bug 820937: Add new download button helper and template.
Bug 820937: Add download_firefox helper and greatly simplified button template.

Bug 795976: Add support for no-js, unrecognized platform, and unsupported platform.
Replace download buttons across the site.
Adjustments to home page for new download buttons
(Bug 795976)
Adjustments to /fx page for new download buttons
(Bug 795976)
IE6 & IE7 fixes for new download buttons
(Bug 795976)
Bug 820622: Add locale to download url path in buttons.
Fix mobile version of /firefox/new/ page logo
Drop custom button styles from /firefox/partners
Bug 795976