Update versions, add myself to authors list

Author: BookOfGreg

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react_ujs",
-  "version": "2.4.0",
+  "version": "2.4.1",
   "description": "Rails UJS for the react-rails gem",
   "main": "react_ujs/index.js",
   "files": [

react-rails.gemspec

@@ -11,8 +11,8 @@ Gem::Specification.new do |s|
   s.homepage = 'https://github.com/reactjs/react-rails'
   s.license = 'Apache-2.0'
 
-  s.author = ['Paul O’Shannessy', 'Robert Mosolgo']
-  s.email = ['[email protected]', '[email protected]']
+  s.author = ['Paul O’Shannessy', 'Robert Mosolgo', 'Gregory Myers']
+  s.email = ['[email protected]', '[email protected]', '[email protected]']
 
   s.add_development_dependency 'appraisal'
   s.add_development_dependency 'bundler', '>= 1.2.2'