Log Message:
Update to 0.12

Upstream changes:
0.12 2014-01-11 15:52:52
    - fix bogus prereqs, PR from felliott (Fitz Elliott)

0.11 2014-01-07 16:04:55
    - add +_traits_behave_like_roles config attribute which prevents roles from
      overriding class methods, matching the behavior of regular Moose roles
    - remove Class::MOP::load_class and use Class::Load due to deprecation
      warning