Created 'bayes' module with Bayes++ library for Bayesian estimation.
Added 'tracking' module and files implementing the Munkres algorithm.
Kalman filter files added to 'tracking' modules. Minor updates to 'bayes' module.
Added .h and .cpp files for class DetectionSource, which contains information about nodes producing detections.
Added files and ROS message for 'Track' class and solved a compilation issue for 'detection' and 'opt_msgs' packages.
Added 'TrackArray' ROS message.
Moved 'DetectionSource' files from 'tracking' to 'detection' package.
Header file guard minor update.
Added files for class 'Detection', which contains information about a people detection.
Added 'Tracker' class (tracker.h, tracker.cpp), which handles tracks creation, update and deletion.
Added tracking node in 'tracking' module.
Added possibility to set a minimum detection threshold for the HaarDispAda classifier.
Change to detection module in order to send also detection confidence given by the Haar-based detector.
Moved 'conversion.h/cpp' from 'detection' to 'opt_utils' module.
Added launch file for Kinect ('openni.launch') in 'detection' module.