Lock to Celluloid 0.16, fixes celluloid/celluloid#641

Changes.md

@@ -1,3 +1,9 @@
+3.4.1
+-----------
+
+- Lock to Celluloid 0.16
+
+
 3.4.0
 -----------
 

lib/sidekiq/version.rb

@@ -1,3 +1,3 @@
 module Sidekiq
-  VERSION = "3.4.0"
+  VERSION = "3.4.1"
 end

sidekiq.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency                  'redis', '>= 3.0.6'
   gem.add_dependency                  'redis-namespace', '>= 1.3.1'
   gem.add_dependency                  'connection_pool', '>= 2.1.1'
-  gem.add_dependency                  'celluloid', '>= 0.16.0'
+  gem.add_dependency                  'celluloid', '~> 0.16.0'
   gem.add_dependency                  'json'
   gem.add_development_dependency      'sinatra'
   gem.add_development_dependency      'minitest', '~> 5.3.3'