Gemfile in clavem-1.4.0 vs Gemfile in clavem-2.0.0

@@ -1,21 +1,22 @@
 # encoding: utf-8
 #
-# This file is part of the clavem gem. Copyright (C) 2013 and above Shogun <[e-mail]>.
+# This file is part of the clavem gem. Copyright (C) 2013 and above Shogun <[e-mail]>.
 # Licensed under the MIT license, which can be found at http://www.opensource.org/licenses/mit-license.php.
 #
 
 source "http://rubygems.org"
 
 gemspec
 
 # Testing
 gem "rspec", "~> 2.14.1"
 gem "rake", "~> 10.1.0"
+gem "em-http-request", "~> 1.1.0"
 
 # Documentation
 gem "simplecov", ">= 0.7.1"
 gem "coveralls", ">= 0.6.7", require: false
 gem "pry", ">= 0"
-gem "yard", ">= 0.8.6"
+gem "yard", ">= 0.8.7"
 gem "kramdown", ">= 1.1.0"
 gem "github-markup", ">= 0.7.5"
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