parseLBS fails to parse (valid?) xml

I'm trying to parse a (maybe not very well formated) rss feed with xml-conduit:

```
> res <- simpleHttp "http://www.semencespaysannes.org/rss.php"
> parseLBS def res
Left Data.Conduit.Text.decode: Error decoding stream of UTF-8 bytes. Error encountered in stream at offset 98. Encountered at byte sequence "\233sea"
```
