code: function() {
  			this._commitUndo();
  			var change, result = false;
  			this._ignoreUndo = true;
  			do {
  				if (this.index >= this.stack.length) {
  					break;
  				}
  				change = this.stack[this.index++];
  			} while (!(result = change.redo(this.view, true)));
  			this._ignoreUndo = false;
  			return result;
  		}
docs: Redo the last change in the stack.
  
  @return {Boolean} returns true if a change was re-done.
  
  @see orion.editor.UndoStack#undo
  @see orion.editor.UndoStack#canRedo