Refactor the 72 proposals post
	new file:   _includes/charts.html
	new file:   _layouts/post-with-charts.html
	deleted:    _posts/2013-10-28-72-talk-proposals-in-total.html
	new file:   _posts/2013-10-28-72-talk-proposals-in-total.md
	modified:   assets/css/style.css
	modified:   assets/less/style.less

  Cleaned up the post by removing layout boilerplate.