[z3-five] Extended characters in forms

[Lennart Regebro]

This does not work. If you have a character like ä in a form, the
widgets try to do unicode(input) on it and you get a
UnicodeDecodeError, 'ascii' codec can't decode byte 0xe5 in position
0: ordinal not in range(128).

How to fix?
-- 
Lennart Regebro, Nuxeo     http://www.nuxeo.com/
CPS Content Management     http://www.cps-project.org/