remove unused import.
open up a firewall variable for simulated clients.
remove some cruft.
internal introspection handles.
clearer comment.
use string constants for no remote controller publishing.
Merge pull request #142 from robotics-in-concert/internal_introspection

Internal introspection handles.
link to the bubble resource.
Merge branch 'hydro-devel' of https://github.com/robotics-in-concert/rocon_app_platform into hydro-devel
Merge branch 'hydro-devel' of https://github.com/robotics-in-concert/rocon_app_platform into hydro-devel
Merge branch 'hydro-devel' of https://github.com/robotics-in-concert/rocon_app_platform into hydro-devel
Merge branch 'hydro-devel' of https://github.com/robotics-in-concert/rocon_app_platform into hydro-devel
centralise the get_rosdistro functionality in case we change it later.
rename interface into public_interface
Merge pull request #147 from robotics-in-concert/rename_interface

rename interface into public_interface
Merge branch 'hydro-devel' of https://github.com/robotics-in-concert/rocon_app_platform into hydro-devel
Merge branch 'hydro-devel' into indigo
fixes for the rocon_utilities breakup.
Merge branch 'hydro-devel' of https://github.com/robotics-in-concert/rocon_app_platform into hydro-devel
Merge pull request #148 from robotics-in-concert/indigo

Interactions overhaul