• Modified Data::Serializer::Storable to always use nfreeze, whether portable flag is set or not
  Thanks to David Sepiashvili arribapor@msn.com for pointing out the original logic wasn't very useful
  
• Removed tests for self references in JSON::Syck, as they are no longer supported - if you try to use them with current
  versions of JSON::Syck it will error out.
  Thanks to David Cantrell david@cantrell.org.uk of the cpan-testers for finding this problem, and helping to track
  it down.