(AutoBalancer, ImpedanceController) : Enable onDeactivated function for ImpedanceController and AutoBalancer
(ImpedanceController, AutoBalancer, Stabilizer) : Move to idling mode if stop() and start() are called. This is discussed in https://github.com/fkanehiro/hrpsys-base/issues/215
Merge pull request #361 from snozawa/add_stop_start_sync_mode

Add stop start sync mode