BUG 5457035 : Anti-spoofing : DO NOT MERGE

Squashed commit of the following:

commit c0969669a6bd55df805665c17e088456c1672da3
Author: Danielle Millett <dmillett@google.com>
Date:   Wed May 30 15:41:22 2012 -0400

    Turning liveliness back on

    As part of the change of putting in the new head turn option, it's
    now passing in the correct value to Face Unlock instead of forcing it
    to always be false.

    Change-Id: I745da5431cbc2d447f3d07ec7215c5b1850f6d57

Change-Id: I36a819b43e89a463bb3bb3ede0db36477fd45066