Merge pull request #237 from robotics-in-concert/indigo

Catch and handle a shutdown exception.
Merge pull request #239 from robotics-in-concert/indigo

Don't try and direct connect to a local hub by default.
rocon_app_utilities: error: unconfigured build_depend on 'rocon_python_utils rocon_uri
rocon_app_manager: CMakeLists.txt(12): error: missing COMPONENTS keyword before 'roslint
Merge pull request #240 from robotics-in-concert/lintwork

Lintwork
Merge branch 'indigo' into hydro-devel