Allow accessing the request and response from SinatraSession

lib/webrat/sinatra.rb

@@ -5,11 +5,13 @@ require 'sinatra/test/methods'
 module Webrat
   class SinatraSession < RackSession #:nodoc:
     include Sinatra::Test::Methods
+    
+    attr_reader :request, :response
 
     %w(get head post put delete).each do |verb|
       define_method(verb) do |*args| # (path, data, headers = nil)
         path, data, headers = *args
-        params = data.merge({:env => headers || {}})
+        params = data.merge(:env => headers || {})
         self.__send__("#{verb}_it", path, params)
         get_it(@response.location, params) while @response.redirect?
       end