Bump the year in the Ruby README's copyright

Author: jarib

rb/README.md

@@ -15,7 +15,7 @@ This gem provides Ruby bindings for WebDriver and has been tested to work on MRI
 
 ## License
 
-Copyright 2009-2013 Software Freedom Conservancy
+Copyright 2009-2014 Software Freedom Conservancy
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.