[bug 1014648] Add hashchange support to firefox tips page
[fix bug 1016400] Redirect /about/careers.html to careers.mozilla.org
Merge pull request #2051 from alexgibson/bug-1016400-redirect-about-careers

[fix bug 1016400] Redirect /about/careers.html to careers.mozilla.org
Update selected device arrow. Bug 977696.

- Also updates bg color & shadows to more closely match PSD.
Merge pull request #2046 from alexgibson/bug-1014648-hashchange-support-firefox-tips-page

[bug 1014648] Add hashchange support to firefox tips page
Merge pull request #2050 from jpetto/bug-977696-fxos-devices-updates

Update selected device arrow. Bug 977696.