ESify feed detail views, prereq to slimming down the homepage
Merge pull request #2357 from ngokevin/feeddetailes

ESify feed detail views, prereq to slimming down the homepage
Update list of editorial brands (bug 1045803).
no amo tests
Merge pull request #2363 from andymckay/no-amo-tests

no amo tests
Merge pull request #2362 from chuckharmston/1045803

Update list of editorial brands (bug 1045803).
slim down the serializers for the actual feed (fireplace home page)
Merge pull request #2359 from ngokevin/feedslim

slim down the serializers for the actual feed (fireplace home page)
tweak feed home serializers
up the feed brand limit to 7
stub in-app products for testing (bug 1045259)
Merge pull request #2358 from kumar303/stub-inapp

stub in-app products for testing (bug 1045259)
JWT for simulated in-app product (bug 1046849)
Fix marketplace favicon.ico (bug 1044290)
Merge pull request #2367 from diox/fix-opensearch-icons

Fix marketplace favicon.ico (bug 1044290)
Attempt to fix tests
Merge pull request #2365 from kumar303/sim-jwt

JWT for simulated in-app product (bug 1046849)
add 32px icon for feed webapp serializer for transonic
Updated queries for elasticsearch 1.0+ (bug 1041709)

This mostly updates our queries to stop using the now deprecated
`_boost` field and instead use function score queries.
Updated docs to install a newer Elasticsearch version