am 581581fe: Merge "Fix all fd leaks in authoring engine" into gingerbread

Merge commit '581581fe1addfac8913c8d4d6c88eed6ded90de4' into gingerbread-plus-aosp

* commit '581581fe1addfac8913c8d4d6c88eed6ded90de4':
  Fix all fd leaks in authoring engine