Issue https://github.com/Netflix/governator/issues/42

Introduce a parameter ignoreTypeMismatch in @Configuration to ignore type mismatch.

This breaks backward compatibility with the Date type of configuration keys. Currently, the date type mismatch is always ignored. There wasn't a way to keep this parameter's behavior consistent across all data types without breaking this compatibility.
Merge pull request #44 from NiteshKant/master

Fix for issue #42