Integrated new sensor model which calculates the observation likelihood in a probabilistic manner
Also includes the option to do beam-skipping (to better handle observations from dynamic obstacles)
Fixed issue causing trajectory planner returning false to isGoalReach ed even when it's control thread finishes executing
Merge pull request #238 from bosch-ros-pkg/hydro-devel-new-sensor-model-fix

A new sensor model which calculates the observation likelihood in a probabilistic manner
Merge pull request #237 from bosch-ros-pkg/hydro-devel-trajectory-planner-at-goal-fix

Fix for issue where trajectory_planner returns false to isGoalReached() even when internally it is done
Merge remote-tracking branch 'upstream/hydro-devel' into hydro