enhance Hashie::Extensions::MethodReader#respond_to?, Hashie::Extensions::MethodWriter#respond_to? and Hashie::Extensions::MethodQuery#respond_to?   so that it supports the optional include_private argument - needed to work properly with some other modules like ActiveModel::Validations
fix typo from previous commit
Merge pull request #62 from dlupu/master

enhance respond_to? method