Log Message:
Update ruby-actionpack32 to 3.2.15.

## Rails 3.2.15 (Oct 16, 2013) ##

* Fix `ActionDispatch::RemoteIp::GetIp#calculate_ip` to only check for
  spoofing attacks if both `HTTP_CLIENT_IP` and `HTTP_X_FORWARDED_FOR` are
  set.

  Fixes #12410
  Backports #10844

  *Tamir Duberstein*

* Fix the assert_recognizes test method so that it works when there are
  constraints on the querystring.

  Issue/Pull Request #9368
  Backport #5219

  *Brian Hahn*

* Fix to render partial by context(#11605).

  *Kassio Borges*

* Fix `ActionDispatch::Assertions::ResponseAssertions#assert_redirected_to`
  does not show user-supplied message.

  Issue: when `assert_redirected_to` fails due to the response redirect not
  matching the expected redirect the user-supplied message (second parameter)
  is not shown. This message is only shown if the response is not a redirect.

  *Alexey Chernenkov*