update twig to 1.16.0
Merge branch '5_4_mountainlion' into 5_5_mountainlion

* 5_4_mountainlion:
  update twig to 1.16.0
5.5.16
Merge remote-tracking branch 'origin/5_5_mountainlion' into 5_5_snowleopard

* origin/5_5_mountainlion:
  5.5.16
  update twig to 1.16.0