Remove make commands related to feed packages.
Handle FxA sign in from email (bug 1080868)
Load site config API anonymously, using the CDN, and cache it (bug 1082570)
Handle old site-config API, where switches is an Object (bug 1082179)
Fix potatolytics by ensuring the GA setup is always done first (bug 1061697)

This is a backport of https://github.com/mozilla/yogafire/commit/fbf8fa19de0e065b12d31f1741246ab592a0c061
Merge pull request #719 from diox/load-site-config-anonymously

Load site config API anonymously, using the CDN, and cache it (bug 1082570)
Merge pull request #720 from diox/waffle-switches-backwards-compat

Handle old site-config API, where switches is an Object (bug 1082179)
Update based on comments
Merge pull request #706 from chuckharmston/remove_feed_package_makefile

Remove make commands related to feed packages.
Don't call consumer_info anymore if not necessary (bug 1081018)

It's only necessary if we don't know the user region (consumer_info
API will do geoip) or if the user is logged in (consumer_info API
contains the list of apps he's installed/developed/purchased)
Merge pull request #713 from diox/avoid-consumer-info-if-unnecessary

Don't call consumer_info anymore if not necessary (bug 1081018)
Merge pull request #714 from mstriemer/login-from-email-1080868

Handle FxA sign in from email (bug 1080868)
ms ~> msg
L10n Extract/compile script. Today's lucky number is 27806.
Commit from Mozilla Verbatim by user michael.koehler1@gmx.de.: 335 of 335 strings translated (0 fuzzy).
Consolidate FxA and Persona post-login handlers (bug 1055555)
Commit from Mozilla Verbatim by user a.polivanchuk@outlook.com.: 335 of 335 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user yfdyh000.: 335 of 335 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user petercpg@mail.moztw.org.: 335 of 335 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user cesperanc@.: 335 of 335 strings translated (0 fuzzy).