request_id --> id
removed service_module
service_type --> type
service_name --> service
stop_service --> unadvertise_service
service_request --> reuse of call_service (previously defined)
matches original call_service
matches original call_service
cleanup init function
rewrite of advertise service
protocol documented for advertise service functions
Merge pull request #143 from RobotWebTools/advertise-service-cleanup

Advertise service cleanup