added binary property support

- add a new rule for media
- added media rule to the rule factory
- added code to type rule to trigger the media rule
- added test cases for binary fields.
Merge pull request #171 from ctrimble/feature_binary-fields

Binary property support
added additionalProperties builder method
Merge pull request #175 from ctrimble/feature_with-additional-property

Builder Method for Additional Properties
[maven-release-plugin] prepare release jsonschema2pojo-0.4.2
[maven-release-plugin] prepare for next development iteration
[release] updating README.md for 0.4.2
Update changelog and contributors for 0.4.2
Make README.md update mandatory, fix 'next steps' for github
added a naming test
added directory based generator code
squash.  Work planning.