Log Message:
Update ruby-actionpack3 to 3.0.13.

* Rails 3.0.13 (May 31, 2012)

* Strip null bytes from Location header

* load the encoding converter to work around [ruby-core:41556] when switching
  encodings

* Avoid inspecting the whole route set, closes #1525

* whitelist protocols for auto_link

* Strip [nil] from parameters hash. Thanks to Ben Murphy for reporting this!
  CVE-2012-2660