Add links to Firefox OS release notes (Bug 890123)
Update OpenSans webfont from fontsquirrel
Bug 894246
Bug 894248 - Fix broken or dead link in /about/powered-by/

Remove 5 dead links + 1 soon-to-be (Songbird), fixed 5 broken links.
Merge pull request #1076 from flodolo/bug894248

Bug 894248 - Fix broken or dead link in /about/powered-by/
Fix bug 891655 - update flicks promo on home page
Merge pull request #1074 from sgarrity/bug-894246-accents

Update OpenSans webfont from fontsquirrel
Merge pull request #1085 from craigcook/bug-891655-update-flicks-promo

Fix bug 891655 - update flicks promo on home page
Merge pull request #1039 from sgarrity/bug-890123-fxos-notes-links

Add links to Firefox OS release notes (Bug 890123)