[Seaside] spanNamed + liveCallback = bug on accentuation

[Bany, Michel]

> So I changed WAResponse>>initialize to use ISO-8859-1 charset so
seaside diplays
> the accents properly.

Florian,

Depending on which version of SeasideAsync you are using, you will have
to
look also at #urlForLiveRequest: or #evaluateWithArgument:
These methods are also setting the content type.

On the other hand, I do not understand why you need to specify
ISO-8859-1 since
UTF-8 is able to encode everything.

HTH
Michel.