code: function(eventHash) {
        // coped from Backbone
        var delegateEventSplitter = /^(\S+)\s*(.*)$/;
        var namespacedEvents = {};
        var behaviorId = this.cid;
        _.each(eventHash, function(value, key) {
          var splitEventKey = key.match(delegateEventSplitter);
          var eventName = splitEventKey[1];
          var selector = splitEventKey[2];
          var namespacedEventName = eventName + '.behavior.' + behaviorId;
          namespacedEvents[[namespacedEventName, selector].join(' ')] = value;
        });
        return namespacedEvents;
      }
docs: Namespaces events in event hash
  
  @method __namespaceEvents
  @param eventHash {Object} to namespace
  @return {Object} with event namespaced with '.behavior' and the cid of the behavior
  @private