remove unused pair.
turtlesim management pairs.
content for the turtlesim service pairs.
missing auto-generation of the pair message, fixed.
Remove depracated post-demo `13 messages.
let the turtle herder manage locations.
add icon in concert service message
remote controller string constant alias.
start work on teleop service messages.
new service messages package.
Merge pull request #74 from robotics-in-concert/service_icon

Add icon in concert service message
version acdc.