attribute '_logger'""" by providing reasonable defaults 
  within the Buildout constructor (related to the new 'allow-hosts' option)
  (patch by Gottfried Ganssauge) (ajung)




git-svn-id: http://svn.zope.org/repos/main/zc.buildout/trunk@87309 62d5b8a3-27da-0310-9561-8e5933582275