jgd.gemspec in jgd-1.5.3 vs jgd.gemspec in jgd-1.6

@@ -1,22 +1,32 @@
 # coding: utf-8
+require 'English'
 Gem::Specification.new do |s|
   s.specification_version = 2 if s.respond_to? :specification_version=
-  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  if s.respond_to? :required_rubygems_version=
+    s.required_rubygems_version = Gem::Requirement.new('>= 0')
+  end
   s.rubygems_version = '2.2.2'
   s.required_ruby_version = '>= 1.9.3'
   s.name = 'jgd'
-  s.version = '1.5.3'
+  s.version = '1.6'
   s.license = 'MIT'
-  s.summary = "Jekyll Github Deploy"
-  s.description = "Automated deployment of your Jekyll blog to Github Pages"
-  s.authors = ["Yegor Bugayenko"]
+  s.summary = 'Jekyll Github Deploy'
+  s.description = 'Automated deployment of your Jekyll blog to Github Pages'
+  s.authors = ['Yegor Bugayenko']
   s.email = '[e-mail]'
   s.homepage = 'http://github.com/yegor256/jekyll-github-deploy'
-  s.files = `git ls-files`.split($/)
-  s.executables = s.files.grep(%r{^bin/}) { |f| File.basename(f) }
-  s.test_files = s.files.grep(%r{^(test|spec|features)/})
-  s.rdoc_options = ["--charset=UTF-8"]
-  s.extra_rdoc_files = %w[README.md LICENSE.txt]
+  s.files = `git ls-files`.split($RS)
+  s.executables = s.files.grep(/^bin\//) { |f| File.basename(f) }
+  s.test_files = s.files.grep(/^(test|spec|features)\//)
+  s.rdoc_options = ['--charset=UTF-8']
+  s.extra_rdoc_files = ['README.md', 'LICENSE.txt']
   s.add_runtime_dependency('trollop', '2.0')
   s.add_runtime_dependency('jekyll', '>=1.5.1')
+  s.add_development_dependency 'coveralls', '~> 0.7', '>= 0.7.0'
+  s.add_development_dependency 'rdoc', '~> 3.11'
+  s.add_development_dependency 'cucumber', '1.3.11'
+  s.add_development_dependency 'minitest', '~> 5.4', '>= 5.4.0'
+  s.add_development_dependency 'rubocop', '~> 0.24', '>= 0.24.1'
+  s.add_development_dependency 'rubocop-rspec', '~> 1.1', '>= 1.1.0'
+  s.add_development_dependency 'rspec-rails', '~> 2.13'
 end