fixed tests so that there is no more warnings.

Before we got the following:

DEPRECATION WARNING: Passing a template handler in the template name is deprecated. You can simply remove the handler name or pass render :handlers => [:erb] instead. (called from realtime at .../ree-1.8.7-2011.03/lib/ruby/1.8/benchmark.rb:308)

test/functional/cms_content_controller_test.rb

@@ -22,15 +22,15 @@ def test_render_page
   end
 
   def test_render_page_with_app_layout
-    cms_layouts(:default).update_attribute(:app_layout, 'cms_admin.html.erb')
+    cms_layouts(:default).update_attribute(:app_layout, 'cms_admin')
     get :render_html, :cms_path => ''
     assert_response :success
     assert assigns(:cms_page)
     assert_select "body[class='c_cms_content a_render_html']"
   end
 
   def test_render_page_with_xhr
-    cms_layouts(:default).update_attribute(:app_layout, 'cms_admin.html.erb')
+    cms_layouts(:default).update_attribute(:app_layout, 'cms_admin')
     xhr :get, :render_html, :cms_path => ''
     assert_response :success
     assert assigns(:cms_page)