Update code to make better use of OpenCV 2.4.5:
- HandleDetection split into more functions
- Make use of pre-written FaceRecognizer class
- Switch from EigenFaces to FisherFaces
- Turn down the min amount of faces to 10
- Use OpenCV's own function for grayscale conversion
Fix possible crash when window was closed before adding the listener
Make HandleStop() more failsafe
Write our own SecurityManager (perhaps overkill)