(Try to) integrate some rogue client-side features into Angular app

[bentsherman]

There are a few "rogue" features in the main website:

• Twitter social stream
• Chatango chat widget
• audio streams

That is, these features aren't components (e.g. controllers, directives) in the Angular app. It's not really a big deal; everything still works, but there are a few minor inconveniences. For example, we have to load jQuery just to load the chat widget in the Media Center view, and opening the Media Center opens 3 more audio streams (albeit only for a minute). So it would be cleaner to integrate these features into the Angular app, but it's not a top priority by any means.