CVS update: samba/source

[Andrew Tridgell]

> util.c: Fix for multibyte characters in strlower, strupper and string_replace.

We're going to have to split our string routines into two sets. Those
functions are sometimes used on things that definately should not be
treated as multi-byte strings (for example, the results of
getpwuid). Also, should things that come from smb.conf be treated as
multi-byte strings? I suspect not, but the main purpose of
string_replace() is for such strings. 

I think we need a set of string routines to deal with "normal"
strings, and another set to deal with potentially multi-byte strings.