Fixed #14. reuters.com had and ID rule instead of a class rule.
Fixed #16. The ID's case was different from another rule.
Fixed #17. Made a class rule case insensitive.

The different sections of NBC news are so badly fragmented. It has
several rules devoted to it at this point.
Added a couple tests for previous fixes.
Fixed #18 and added test. bleechreport.com had uncaught rule.
Fixed #19 and added a test. Needed a new rule.
Fixed #21. Added mtv.com to #comments block list.
Regenerated subscription list.