arduino_firmata.gemspec in arduino_firmata-0.3.1 vs arduino_firmata.gemspec in arduino_firmata-0.3.2

@@ -8,14 +8,20 @@
   gem.authors       = ["Sho Hashimoto"]
   gem.email         = ["[e-mail]"]
   gem.description   = %q{Arduino Firmata protocol (http://firmata.org) implementation on Ruby.}
   gem.summary       = gem.description
   gem.homepage      = "http://shokai.github.com/arduino_firmata"
+  gem.license       = "MIT"
 
   gem.files         = `git ls-files`.split($/).reject{|i| i=="Gemfile.lock" }
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
+
+  gem.add_development_dependency 'rake'
+  gem.add_development_dependency 'bundler', '~> 1.3'
+  gem.add_development_dependency 'minitest'
+  gem.add_development_dependency 'backports'
 
   gem.add_dependency 'serialport', '>= 1.1.0'
   gem.add_dependency 'args_parser', '>= 0.1.4'
   gem.add_dependency 'event_emitter', '>= 0.2.4'
 end