Angular/linear acceleration script added.
Merge pull request #327 from yujinrobot/test_angular

Adding test scripts for linear and angular acceleration. and some extra
added side_point_angle param to change the angle of the bumper pointcloud's side points
added comments to explain about the faraway points
Merge pull request #333 from KaijenHsiao/hydro-devel

Added param to vary the bump/cliff side points' angle
Merge branch 'hydro-devel' into indigo