Added sergio.launch

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/trunk/tue_teleop_spacenav@28402 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Added short readme

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/trunk/tue_teleop_spacenav@28403 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Spacenav publisher goes to idle after 10 seconds without input

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/trunk/tue_teleop_spacenav@28413 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6