am 8674a726: (cherry-pick) support installing any .zip file on the sdcard

Merge commit '8674a726ff05a4a6c09c6934778c251635f130a8' into gingerbread-plus-aosp

* commit '8674a726ff05a4a6c09c6934778c251635f130a8':
  (cherry-pick) support installing any .zip file on the sdcard