code: function (entry, conn_type, fullname, onDone) {
  
  		// we query from the given entry server		
  		fullname = fullname.replace(/-/g, '/');
  		var req = 'http://' + entry + '/' + fullname + '/' + conn_type;
  		SR.Log('queryConnectionPoint: ' + req);
          
  		// will return undefined if failed or no response
  		// otherwise should be an object of form {IP: string, port: number}
  		httpGet(req, onDone);
  	}
docs: get a socket connection point (IP+port) from a given entry server