ros: MapCloudDisplay::downloadMap() creating/buffering also clouds of nodes not in the current map

git-svn-id: http://rtabmap.googlecode.com/svn/trunk/ros-pkg@1673 f169173b-cf89-36c8-b27e-44dbe73f0c83
ros: azimut3 added az3_openni.launch file for easy modifications of the camera frame

git-svn-id: http://rtabmap.googlecode.com/svn/trunk/ros-pkg@1674 f169173b-cf89-36c8-b27e-44dbe73f0c83
ros: updated azimut3.rviz

git-svn-id: http://rtabmap.googlecode.com/svn/trunk/ros-pkg@1675 f169173b-cf89-36c8-b27e-44dbe73f0c83