Merged revisions 58091-58094 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r58091 | gregory.p.smith | 2007-09-10 18:36:32 +0200 (Mon, 10 Sep 2007) | 3 lines

  Don't allow BerkeleyDB 4.6.x as the current 4.6.19 release is prone
  to lockups.  We'll reenable it once a good 4.6.x release exists.
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