Added Rumble. Thanks to [H]ard|Forum for sponsoring this addition.
Updated lazy loader. It may help with dynamically-sized embeds (e.g. tweets) being cut off.
Updated Twitter. Tweets are now slightly wider (550px vs 500px) and should load imperceptibly faster.
A word about embedded tweets. At the time of writing, embedding a text-only tweet using Twitter's default method requires 20+ HTTP requests and 3.5 MB of resources. This update reduces both by approximately 10% and saves about 100 ms on loading time on a fast network. It is unclear why Twitter loads 3.4 MB of JavaScript to display ~140 characters of black-and-white text.
