reload(options) {
		// reset the level to initial state
		//levels[currentLevel].reset();
		return this.load(this.getCurrentLevelId(), options);
	}
reload the current level
@name reload
@memberof level
@public
@param {object} [options] - additional optional parameters
@param {Container} [options.container=game.world] - container in which to load the specified level
@param {Function} [options.onLoaded=game.onLevelLoaded] - callback for when the level is fully loaded
@param {boolean} [options.flatten=game.mergeGroup] - if true, flatten all objects into the given container
@returns {object} the current level