Remove defer hack which caused Sidekiq to use more connections and memory than necessary

Changes.md

@@ -1,8 +1,9 @@
 HEAD
 -----------
 
-- Defer loading JSON until a full Thread stack is available.  Celluloid's
-  standard 4k actor stack will lead to crashes when parsing large payloads.
+- Tune Celluloid to no longer run message processing within a Fiber.
+  This gives us a full Thread stack and also lowers Sidekiq's memory
+  usage.
 
 2.0.3
 -----------

Gemfile

@@ -1,7 +1,7 @@
 source 'http://rubygems.org'
 gemspec
 
-gem 'celluloid', :github => 'celluloid/celluloid'
+gem 'celluloid'
 gem 'slim'
 gem 'sprockets'
 gem 'sass'

lib/sidekiq/version.rb

@@ -1,3 +1,3 @@
 module Sidekiq
-  VERSION = "2.0.3"
+  VERSION = "2.0.4"
 end

sidekiq.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency                  'redis', '~> 3'
   gem.add_dependency                  'redis-namespace'
   gem.add_dependency                  'connection_pool', '~> 0.9.2'
-  gem.add_dependency                  'celluloid', '~> 0.11.0'
+  gem.add_dependency                  'celluloid', '~> 0.11.1'
   gem.add_dependency                  'multi_json', '~> 1'
   gem.add_development_dependency      'minitest', '~> 3'
   gem.add_development_dependency      'sinatra'