updated service name: publish_current_map_data and publish_full_map_data
fixed not published recalled images
Grid map assembler: remove obstacle if a new laser says empty
Modified MapData and InfoEx msg (MapCorrection field is not anymore in MapData)
git-svn-id: http://rtabmap.googlecode.com/svn/trunk/ros-pkg@1067 f169173b-cf89-36c8-b27e-44dbe73f0c83