Fix file names in minitest_support feature even more
minitest: add verify_contract support
minitest: add verify_contract support to minitest 4.7
Merge pull request #29 from chastell/minitest_verify_contract

minitest: verify_contract support
Remove deprecation warning from Guardfile
Downgrade the cached described class from instance to local variable
Add initial implementation of custom verified class
Remove duplication from adding contract verification
Add documentation for custom overwritten class