Bumping dependencies.
Add a simple way to get at all the traits of a class.
Allow callbacks for trait inclusion.
Add concrete error implementations.
Use concrete InvalidConfig error.
Use concrete UnknownMember error.
Use concrete UnknownMethod error.
Use concrete UnknownClass and relax ModelInterface enforcement.
Remove unused error.
Use UnknownModel error.
Remove NonUniqueEntity for now.
Remove DeletedEntity.
Remove Hum\Error.