code: function(item, reroot) {
  			return this.showItem(item, reroot).then(function(result) {
  				this.select(result);
  			}.bind(this));
  		}
docs: Shows and selects the given item.
  @param {Object} The item to be revealed.
  @param {Booelan} [reroot=true] whether the receiver should re-root the tree if the item is not displayable.
  @returns {orion.Promise}