Merge pull request #21 from cucumber/feature/updated_deps

Update ruby/gem dependencies - require Ruby 2.3

cucumber-wire.gemspec

@@ -1,29 +1,27 @@
 # -*- encoding: utf-8 -*-
-$LOAD_PATH.unshift File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift File.expand_path('../lib', __FILE__)
 
 Gem::Specification.new do |s|
   s.name        = 'cucumber-wire'
-  s.version     = File.read(File.dirname(__FILE__) + "/lib/cucumber/wire/version")
-  s.authors     = ["Matt Wynne"]
-  s.description = "Wire protocol for Cucumber"
+  s.version     = File.read(File.dirname(__FILE__) + '/lib/cucumber/wire/version')
+  s.authors     = ['Matt Wynne']
+  s.description = 'Wire protocol for Cucumber'
   s.summary     = "cucumber-wire-#{s.version}"
   s.email       = '[email protected]'
-  s.homepage    = "http://cucumber.io"
+  s.homepage    = 'http://cucumber.io'
   s.platform    = Gem::Platform::RUBY
-  s.license     = "MIT"
-  s.required_ruby_version = ">= 2.2"
+  s.license     = 'MIT'
+  s.required_ruby_version = '>= 2.3'
 
   s.add_dependency 'cucumber-core', '~> 4.0'
   s.add_dependency 'cucumber-expressions', '~> 7.0'
 
   s.add_development_dependency 'cucumber', '~> 4.0'
+  s.add_development_dependency 'rake',      '~> 12.0'
+  s.add_development_dependency 'rspec',     '~> 3.5'
+  s.add_development_dependency 'aruba',     '~> 0.14'
 
-  s.add_development_dependency 'bundler',   '>= 1.3.5'
-  s.add_development_dependency 'rake',      '>= 0.9.2'
-  s.add_development_dependency 'rspec',     '~> 3'
-  s.add_development_dependency 'aruba',     '~> 0'
-
-  s.rubygems_version = ">= 1.6.1"
+  s.rubygems_version = '>= 1.6.1'
   s.test_files            = Dir[
     'spec/**/*'
   ]
@@ -34,6 +32,6 @@ Gem::Specification.new do |s|
     'LICENSE',
     'lib/**/*'
   ]
-  s.rdoc_options     = ["--charset=UTF-8"]
-  s.require_path     = "lib"
+  s.rdoc_options     = ['--charset=UTF-8']
+  s.require_path     = 'lib'
 end