Add private static final field name regex test
Implement using private final static field name regex
Fix javadoc for field name rule
Merge pull request #55 from alien11689/addPrivateStaticFinalFieldNameRegex

Add private static final field name regex.

Thanks for the contribution!
Fix #157: Enable optionally using Thread Context classpath.
Update CHANGELOG
Update CHANGELOG
Fix #54: Invalid Cast to BigDecimal.
Fix #51: CodeNarc command-line runner to return exit status of 1 for errors.