[Checkins] [zopefoundation/zExceptions] dd96ab: add setHeader method to HTTPException

[GitHub]

  Branch: refs/heads/davisagli-exception-headers
  Home:   https://github.com/zopefoundation/zExceptions
  Commit: dd96ab7e0d063f1cf365a2d746fdd11ea6298b76
      https://github.com/zopefoundation/zExceptions/commit/dd96ab7e0d063f1cf365a2d746fdd11ea6298b76
  Author: David Glick <david at glicksoftware.com>
  Date:   2017-01-31 (Tue, 31 Jan 2017)

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

  Log Message:
  -----------
  add setHeader method to HTTPException