Clean up NSEC.rb and NSEC3.rb.
Add JRuby back to Travis config. Revert fix to verify failure; will restore change momentarily.
Fix range use that was causing test failure in JRuby.
Make an assert report errors more thoroughly.
Remove assert of $@, which is intended for use in rescue clause.
Refactor RR.rb; add 'if block_given?' to ctor of decoder & encoder to enable non-block use.
Prepend assignments in if clause with '!!' to clarify that the assignment is being made and is intentional.
Replace $n regex variables with use of MatchData object.
Minor refactoring.
Add failing test to show that method is not private.
Fix private declaration of class method.
Merge pull request #39 from keithrbennett/fix-jruby-nsec

Fix JRuby test failure. clean up NSEC.rb and NSEC3.rb.
Merge pull request #40 from keithrbennett/refactor-rr

Refactor RR.rb; add 'if block_given?' to ctor of decoder & encoder to en...