pairing start/stop logic and exception handling (with message boxes) thrown in, #98
added the rocon qt listener program (useful for testing).
show the pairing interaction via background colour, #98
concert_teleop_app -> concert_qt_teleop to fit our naming scheme.
signal gui updates across threads, fixes #103
unused refresh button now marked as unused.
gracefully handle sigints so we don't leave zombie nodes around, #104
update interactions list when stop interactions button is pressed.
split main window code into different modules.
usage help message for concert_teleop
don't abort if pairing support is not available.
minor import name bugfix due to recent refactoring.
minor bugfix to the remocon web browser callback and better feedback on teleop problems.
bugfix broken web browser lookup.
Merge branch 'indigo' into hydro-devel