update Rakefile to run test_units with the new test task

Rakefile

@@ -109,19 +109,23 @@ namespace :spec do
 
   namespace :integration do
     desc "Run the Rails integration specs"
-    task :rails do
+    task :rails => ['rails:webrat','rails:selenium']
+
+    namespace :rails do
+      task :selenium do
         Dir.chdir "spec/integration/rails" do
-        result = system "rake test_unit_webrat"
+          result = system "rake test_unit:selenium"
           raise "Rails integration tests failed" unless result
         end
       end
 
-    task :rails_selenium do
+      task :webrat do
         Dir.chdir "spec/integration/rails" do
-        result = system "rake test_unit_selenium"
+          result = system "rake test_unit:rails"
           raise "Rails integration tests failed" unless result
         end
       end
+    end
 
     desc "Run the Merb integration specs"
     task :merb do