Changes to be committed:
	deleted:    Dockerfile
	new file:   app/css/2cols.css
	new file:   app/css/4cols.css
	deleted:    app/css/4cols.css
	deleted:    app/css/5cols.css
	deleted:    app/drag.html
	deleted:    app/draw.html
	modified:   app/index.html
	deleted:    app/js/drag.js
	deleted:    app/js/draw.js
	modified:   app/js/halfmag.js