Obstacle layer ignores range_min / range_max

[ZdenekM]

Obstacle layer should deal somehow with range_min / range_max values from LaserScan message.

[ZdenekM]

Well, range_max is quite clear. In case of range_min my proposal is to start raytracing on clearing operation not at sensor origin but in range_min distance from sensor. In case of marking - it might be configurable (mark when dist < range_min vs. don't mark).

[procopiostein]

+1