6.0 Changes

- Damage calculations have been cleaned up.
- Removed ‘crit contribution’ from damage_breakdown tuples. It was dead
weight.
- get_dps_contribution() was relocated to the rogue module for now.
- set_constants() should only be called after all data structures have
been initialized properly. This helps reduce is_spec() calls and makes
code cleaner.
- Blade Flurry has been updated. OP Cleave is back.
- Slightly improved commenting.
- Removed dead/outdated code.