Update gems: mutant and mutant-rspec
Update the draft
Make 'inheritance' be an object

* Tale::Inheritance class

http://tenderlovemaking.com/2012/09/07/protected-methods-and-ruby-2-0.ht
ml
Make Tale::Son use Tale::Inheritance

* Refactor the spec

http://blog.davidchelimsky.net/blog/2012/05/13/spec-smell-explicit-use-o
f-subject/
https://github.com/andreareginato/betterspecs/issues/2#issuecomment-9200
711
Make Tale::Miller use Tale::Inheritance

* Refactor the spec

http://blog.davidchelimsky.net/blog/2012/05/13/spec-smell-explicit-use-o
f-subject/
https://github.com/andreareginato/betterspecs/issues/2#issuecomment-9200
711
Make Tale::DivideInheritance spec use Tale::Inheritance