Bug 958321 - load Droid Arabic Naskh only for pages that need it

Declaring this font in the base style sheet adds 200k and two additional requests when the majority of visitors won't even need it. Instead we can load it only when the page is in a language where this font can be of use.
Merge pull request #1582 from craigcook/bug-958328-conditional-arabic-fonts

Bug 958321 - load Droid Arabic Naskh only for pages that need it
Bug 958053 - Sent to wrong URL when clicking on XULRunner, Gecko or Firefox APIs links from products page
Bug 958720 - Typo on Firefox OS FAQ, says "selling Firefox", not "selling Firefox OS" ("OS" missing)
Merge pull request #1586 from kyoshino/bug-958720-fxos-faq-typo

Fix Bug 958720 - Typo on Firefox OS FAQ, says "selling Firefox", not "selling Firefox OS" ("OS" missing)
Merge pull request #1585 from kyoshino/bug-958053-wrong-mdn-links

Fix Bug 958053 - Sent to wrong URL when clicking on XULRunner, Gecko or Firefox APIs links from products page
Consolidate press kit redirects for Bug 957664
Merge pull request #1583 from sgarrity/bug-957664-press-kits

Consolidate press kit redirects for Bug 957664
Upgrade python-memcached to a supported version.
Redirect Firefox VPAT pages to archive
Bug 960064
Merge pull request #1589 from sgarrity/bug-960064-vpat

Bug 960064 Redirect Firefox VPAT pages to archive
Fix Bug 831810, append UTM params for GA
Remove home search field. Bug 958255.

- GA experiment has completed.
Merge pull request #1593 from jpetto/bug-958255-remove-home-search-field

Remove home search field. Bug 958255.
Merge pull request #1592 from kyoshino/bug-831810-mwc-redirect-utm

Fix Bug 831810, append UTM params to the MWC redirect for GA