Added mirroring option to OpenNI2 camera
Removed "RGBD/MaxAnticipatedNodes" and "RGBD/GoalMaxDistance" parameters
Renamed "RGBD/LocalLoopDetectionRadius" to "RGBD/LocalRadius"
Added "RGBD/MaxLocalRetrieved" parameter
GUI: fixed OpenNI 2 selection from the MainWindow, added OpenNI2 under Kinect menu
Added computePath() method implementating A star on graph
GUI: SetWindowModified() and user should explicitly save the GUI config to keep them
Calibration: added mirror checkbox, added device id argument