Initialize flickity

flickity.init.js

			var slider = document.querySelector('#slider');
			imagesLoaded(slider, function() {
			// load flickity only when images have all loaded
			var flkty = new Flickity( slider, {
				cellAlign: 'left',
				contain: true,
				prevNextButtons: false,
				pageDots: false,
				autoPlay: 2000,
				wrapAround: true,
				selectedAttraction: 0.01,
			});