* viewvc.conf.dist
(mangle_email_addresses): New option.
* lib/config.py
(Config.set_defaults): Set defaults for new 'mangle_email_addresses'
option.
* lib/viewvc.py
In various functions, use 'cfg = request.cfg' to enhance readability.
(htmlify): Add 'cfg' parameter. Callers updated. Honor the new cfg
option 'mangle_email_addresses', showing only "username@..." when
mangling.
(copy_stream, MarkupPipeWrapper.__init__, MarkupShell.__init__): Add
'cfg' parameter. All callers updated.
(MarkupEnscript.__init__, MarkupHighlight.__init__): Squirrel away
the 'cfg' parameter.
* docs/upgrading-howto.html
Note the new mangle_email_addresses option.
git-svn-id: http://viewvc.tigris.org/svn/viewvc/trunk@1670 8cb11bc2-c004-0410-86c3-e597b4017df7