add note about broken WXR (use xmllint to fix)
SMTP authentication uses bytes, not unicode, fixes #126

Encode configuration variables as ascii, ignoring non-ascii characters
(Python's smtplib is not yet able to support the UTF8SMTP).
Preparing release 0.9.7
Back to development: 0.9.8
Merge branch 'legacy/0.9'

Conflicts:
	CHANGES.rst
	setup.py