[Checkins] [zopefoundation/ZODB] 3ddd35: don't try to build docs on pypy3

[GitHub]

  Branch: refs/heads/merge-zodbdocs
  Home:   https://github.com/zopefoundation/ZODB
  Commit: 3ddd358dbe6d92fe87e8af20e521d54baa85ad96
      https://github.com/zopefoundation/ZODB/commit/3ddd358dbe6d92fe87e8af20e521d54baa85ad96
  Author: Jim Fulton <jim at zope.com>
  Date:   2016-09-08 (Thu, 08 Sep 2016)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  don't try to build docs on pypy3