Add a bunch of roles
Document/Improve roles, add RegexpFile role
Reimplement all Heuristics in terms of roles
Improve POD for new role changes
Add roles for negative heuristics
Implement negative heuristics in terms of roles
Add deprecation notice of some kind
Add weaver conf for REQUIRES
Add Heuristic Set Roles
reimplement existing sets in terms of roles
Update Deprecation notice
Update CHANGES/Readme