CMake for meta pkg
0.4.0
relative path needs the .
buildtool depend on catkin for metapackages.
0.4.1
rqt_gateway_grpah to rocon_gateway_graph
started looking to add tooltips, but it's not implemented yet.
Merge pull request #2 from robotics-in-concert/multi-hub

Updated for hydro and multihub
merge from hydro