docs: function reportableIntervalURL(sourceIds) {
  		var url = (baseURL() +'/range/interval?nodeId=' +nodeId);
  		if ( Array.isArray(sourceIds) ) {
  			url += '&sourceIds=' + sourceIds.map(function(e) { return encodeURIComponent(e); }).join(',');
  		}
  		return url;
  	}