ensure refresh messages get passed to all connected clients
	modified:   app.js
style tweaks, number of visible tweets down to 7
	modified:   apps/mongo/db.js
	modified:   public/js/views/TweetsView.js
	modified:   public/styles/css/main.css
	modified:   public/styles/sass/partials/_schedule.sass
	modified:   public/styles/sass/partials/_tweets.sass