Changed app title
Removed example junk
Added filtering
Made playlist list-items into links

Changed styles of buttons for filtering and resetting, and turned the
playlists into dummy links.
Made links to playlists work properly!

Solution courtesy of Stack Overflow:
http://stackoverflow.com/questions/15863994/jquery-deferred-should-work-
bot-doesnt
Removed dead links created by playlist folders

Removed undefined links resulting from playlist folders.  Also
rationalized some variable names in playlist-filter.js and corrected
some documentation in playlist-search.js