Include author in changelog

actionpack/CHANGELOG

 *Rails 3.0.0 [Edge] (pending)*
 
 * Changed the object used in routing constraints to be an instance of
-  ActionDispatch::Request rather than Rack::Request
+  ActionDispatch::Request rather than Rack::Request [YK]
 
 * Changed ActionDispatch::Request#method to return a String, to be compatible
   with Rack::Request. Added ActionDispatch::Request#method_symbol to
-  return a symbol form of the request method.
+  return a symbol form of the request method. [YK]
 
 * Changed ActionDispatch::Request#method to return the original
   method and #request_method to return the overridden method in the
   case of methodoverride being used (this means that #method returns
   "HEAD" and #request_method returns "GET" in HEAD requests). This
-  is for compatibility with Rack::Request
+  is for compatibility with Rack::Request [YK]
 
 *Rails 3.0.0 [beta 2] (April 1st, 2010)*