michaelklishin/validateur — pull request #13 by dmarjenburgh (2013-10-06 19:43:33+00:00)
Title: change inclusion-of with :allow-nil set to true

Before this change, the option :allow-nil did not impact the set of valid maps.
This change allows inclusion-of with allow-nil set to true to pass maps with the key is missing the value is nil to be valid.