Merge pull request #49 from Jailander/hydro-devel

Changing strands_datacentre to ros_datacentre
added people (face detection)
edited for new bringup launch
Merge branch 'hydro-devel' of https://github.com/strands-project/strands_systems into hydro-devel
removed datacentre from linda launch file
added strands_deployment
added strands_tabletop_perception
added new file
Xorg config for the additional PC's
Adding simulation with topological_navigation to strands_uol_sim