[Checkins] [zopefoundation/zope.catalog] 0d8ac9: Force 'persistent' before 'BTrees'.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.catalog
  Commit: 0d8ac965b182f8fa4dbc70a1a546edef2f51b894
      https://github.com/zopefoundation/zope.catalog/commit/0d8ac965b182f8fa4dbc70a1a546edef2f51b894
  Author: Tres Seaver <tseaver at palladion.com>
  Date:   2013-04-04 (Thu, 04 Apr 2013)

  Changed paths:
    M setup.py

  Log Message:
  -----------
  Force 'persistent' before 'BTrees'.

Try to work around zc.buildout's ignorance of setup_requires.