Modifying YouTube Video to use YouTube Data API

A video is now selected at random from a specified playlist instead of
being hard-coded. I have it set to a LoTRO playlist, however, it'd be
advisable to set this to something that pertains to the site (no idea
what that'd be).
Fixing RSS Feeds in Chrome

Chrome wasn't loading the RSS feeds.
Adding in loading icon.
Cleaning up formatting.

Github doesn't like tabs, apparently. :P
Adding ability to assign specific YouTube Video ID

Per request. :P
Adding new comments for clarity
Updating null checks

Sorry, but this just doesn't look right to a C++ programmer. :P
Merge pull request #4 from QuantumCD/gh-pages

Modifying YouTube Video to use YouTube Data API, fix RSS feed Chrome bug