[Checkins] [zopefoundation/zExceptions] 4586b5: add setHeader method to HTTPException (#2)

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zExceptions
  Commit: 4586b5ef609c75ef9ed979f2e9a2012053f352d6
      https://github.com/zopefoundation/zExceptions/commit/4586b5ef609c75ef9ed979f2e9a2012053f352d6
  Author: David Glick <david.glick at plone.org>
  Date:   2017-02-01 (Wed, 01 Feb 2017)

  Changed paths:
    M .travis.yml
    M CHANGES.rst
    M src/zExceptions/__init__.py

  Log Message:
  -----------
  add setHeader method to HTTPException (#2)

* add setHeader method to HTTPException

* fix for Python 3

* Update to PyPy 3.3