[Checkins] [zopefoundation/zope.testbrowser] b0ed26: Add missing import

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.testbrowser
  Commit: b0ed26cf7f43419a70ac8ddf8c62007994840cd4
      https://github.com/zopefoundation/zope.testbrowser/commit/b0ed26cf7f43419a70ac8ddf8c62007994840cd4
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2013-09-04 (Wed, 04 Sep 2013)

  Changed paths:
    M src/zope/testbrowser/tests/test_doctests.py

  Log Message:
  -----------
  Add missing import

Should fix tests on Travis.

I don't quite understand why the tests were failing
nondeterministically, though.