Preserve multibyte UTF-8 characters when obfuscating.

This version uses the unicode 'replace' option, so non-UTF-8
encodings will still be mangled. Luckily, there aren't any
of those.

mercurial/templater.py

@@ -241,6 +241,7 b' def nl2br(text):'
     return text.replace('\n', '<br/>\n')
 
 def obfuscate(text):
+    text = unicode(text, 'utf-8', 'replace')
     return ''.join(['&#%d;' % ord(c) for c in text])
 
 def domain(author):