PowerWidget: Dismiss unsecure keyguard on long tap

Change-Id: I88f5db97694b92007d44d32ff103793fafcdb067
JIRA: CYAN-1865
Issue: https://jira.cyanogenmod.org/browse/CYAN-1865
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Merge "PowerWidget: Dismiss unsecure keyguard on long tap" into cm-10.1