Title and font in OSX alert.
Replaced Windows Lock with stronger C-based version, refactored and simplified module structure.
Fixed lock.kill() call.
Lock: Ensure valid password length.
Lock: Don't expect a callback on stop(), cause we ain't getting one.
Handle no logged user when firing lock.
Lock: clearTimeout when stopping if timer 'no logged user' exists.
Fixed prey-lock shebangs to avoid bashisms.
Allow passing options to spawn/exec as logged user.