• minor documentation tweaks
  
• minor test tweaks
  
• refactor creation and installation of helper subs allowing extensions to
  customize the behavior easier.
  
• added is_class and make_class methods to Moo
  
• added make_role method to Moo::Role
  
• lower Scalar::Util dependency to 1.00
  
• fix unlikely failure to properly inflate Type::Tiny types to Moose under
  threads on perl 5.8