[Seaside] How to set the charset in WAHtmlErrorHandler

[jtuchel at objektfabrik.de]

I just saw that maybe the setting of the charset to the one of the 
requestContext might be a good idea for inclusion in the Seaside code 
rather than overriding it in my subclass.

So where can I add a bug entry for that (and can I at all)?

Jaochim