doctrine/phpcr-odm — pull request #102 by lsmith77 (2012-02-06 10:35:26+00:00)
Title: Reference issue

i have done the changes for 2 reasons:
1) centralizing the mixing logic
2) handle the case if a phpcr implementation doesn't know about ``mix:versionable`` and therefore not know that it extends ``mix:referenceable`` (not sure if this is even possible @dbu)

note the original reason for working on this was to try and make midgard happy again with the recent changes to the reference handling (@bergie)