Version 1.8.1 update

- Changed the file structure around a little bit to make debugging and
organizing easier.

@ Affliction:
- Added an option to enable cooldowns only for bosses or all unit types.
- Cleaned up the code a little bit to hopefully speed up parsing.

@ Destruction:
- Work continues, not yet fully functional.

@ Demonology:
- Added Demonology rotation file. The spec is NYI though.