Rewrite Atom generation from stream entries to use Ox instead of Nokogiri (#1124)

* Rewrite Atom generation from stream entries to use Ox instead of Nokogiri::Builder

StreamEntry is now limited to only statuses, which allows some optimization. Removed
extra queries on AccountsController#show. AtomSerializer instead of AtomBuilderHelper
used in AccountsController#show, StreamEntriesController#show, StreamEntryRenderer
and PubSubHubbub::DistributionWorker

PubSubHubbub::DistributionWorker moves n+1 DomainBlock query to PubSubHubbub::DeliveryWorker
instead.

All Salmon slaps that aren't based on StreamEntry still use AtomBuilderHelper and Nokogiri

* All Salmon slaps now use Ox instead of Nokogiri. No touch from status on account

1 files changed, 1 insertions, 0 deletions

diff --git a/Gemfile b/Gemfile
index b5705e9d1..65bd5eb49 100644
--- a/Gemfile
+++ b/Gemfile
@@ -34,6 +34,7 @@ gem 'doorkeeper'
 gem 'rabl'
 gem 'rqrcode'
 gem 'twitter-text'
+gem 'ox'
 gem 'oj'
 gem 'hiredis'
 gem 'redis', '~>3.2', require: ['redis', 'redis/connection/hiredis']