stop heartbeat if ping throws an exception, and expose ping() to make it usable in applications.
stop heartbeat if ping throws an exception, and expose ping() to make it usable in applications.

Transcordia/ringojs,Transcordia/ringojs,ringo/ringojs,Transcordia/ringojs,ringo/ringojs,ringo/ringojs,ringo/ringojs,Transcordia/ringojs