Make ruby syntax warning free. Closes #22
Ignore Bogus interface while coping class methods
Ignore warnings from external libs
Overwrite described_class on verify_contract

Fixes #21
Update changelog with latest fixes
Add with matcher. Closes #17.
Add test for with matcher in interaction comparator tests
Add any(Klass) argument matcher
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Add have_received(:name, args) syntax for spies
Reverse changelog
Bump version