xmlregexp patch

xmlregexp does not appear to handle UTF-8 in ranges. Run testSchemas
with the attached test files (rx.xsd and rx.xml). The attached patch
(against latest CVS) fixes the problem (at least for my little test). I
also ran the regression tests and this patch doesn't break anything.

Charlie B.

rx.xsd
Description: Text document

rx.xml
Description: Text Data

xmlregexp.pat
Description: Text Data