Oct 2014 update/fix

<sub><sup>I was wondering why my heroku app stopped working randomly today...</sup></sub>

Took about 2 hours or so to make it work with the new update.
- Album/single info seems to be removed so removed associated parameter. 
- The chart is now all on one page so params felt pointless, so removed that as well.
- Past chart URL format is now http://www.billboard.com/charts/hot-100/2014-10-25

Loads charts okay on my end, let me know if I missed anything.