tests/test-doctest.py

Some clarifications for pull/push protocols:
- List file:// and static-http://
- Mention that you can pull from bundle files
- List http and https as valid push targets, but emphasize that this
  feature has to be enabled.

#!/usr/bin/env python
#

import doctest

import mercurial.changelog
# test doctest from changelog

doctest.testmod(mercurial.changelog)