leg_detector with debugging output for using pcl's people detection as seeds
updated leg_detector using pcls people detections as seeds
new velocity tracker that chooses the tracker to update by distance from the measurement instead of the measurements ID
added timeout for velocity trackers
added missing dependency for people_msgs to people_tracking_filter
Merge branch 'pcl-people-seeds' of https://github.com/Marinsky/people into pcl-people-seeds
added a velocity limit for tracker updates to people_velocity_tracker
added max_update_velocity and min_timestep between velocity updates to tracking filter. If position updates come to frequently, the time diff between them is very small leading to large update velocities. To avoid that, the velocity is bounded now and new positions are only accounted for if the time between the updates is large enough