 
   `Tuple` - `{:ok, conn}`
   """
-  def forward(conn, controller, action, args // []) do
+  def forward(conn, controller, action, args \\ []) do
     apply controller, action, [conn, args]
   end
 


  `Tuple` - `{:ok, sent_response}`
  """
  def render(conn, template, opts // []) do
    opts = [status: 200] |> Keyword.merge opts

    conn = conn 
      |> put_resp_content_type(opts[:content_type] || MIME.Types.type("html")) 
      |> resp(opts[:status], body)
    conn |> send_resp
  end



  `Tuple` - `{:ok, sent_response}`
  """
  def redirect(conn, location, opts \\ []) do
    opts = [status: 302] |> Keyword.merge opts
    conn = conn 
      |> put_resp_header("Location", location) 
