Lyricwiki licensing changes

This pull-request is basically a test-run of working on my branch and doing pull requests via Mix to get the code into the dev branch (to follow the current Wikia process).  The changes are very minor but also low-risk so it seemed like a perfect (albeit somewhat scattered) commit to use as a dry-run.

- Some very minor changes to comments & style in various parts of LW code, as well as slightly more significant changes to bop.fm code.
- The bop.fm changes include pulling in their JS file and hosting it locally.  The JS was then modified to work with our other AMD code.  The widget now runs on my dev-box http://lyrics.sean.wikia-dev.com/wiki/Cake:Dime but is too wide (working on that).  Since the bop.fm extension is still not enabled anywhere, this change should also be very low-risk.