Kwalify 0.5.0 released.

Changes from 0.4.1

* Enhances:
- Meta-validation check for 'max < min', 'max-ex <= min-ex', and so on.
- Many test-cases are added
* Changes:
- 'Parser' class is renamed to 'YamlParser'
- 'PlainParser' class is renamed to 'PlainYamlParser'
- YamlParser#set_error_linenums() is renamed to set_errors_linenum()
- ValidatorError#<=> added
- ParseError class is renamed to YamlSyntaxError

Also Kwalify-java is now released.

--
regards,
kwatch