showModule (module, speed, callback, options) {
			// do not change module.hidden yet, only if we really show it later
			showModule(module, speed, callback, options);
		}
Show the module.
@param {Module} module The module to show.
@param {number} speed The speed of the show animation.
@param {Function} callback Called when the animation is done.
@param {object} [options] Optional settings for the show method.