charcnv.c: Added codepage 866 support onto the file system. Patch

charcnv.c: Added codepage 866 support onto the file system. Patch
from Max Khon <max@iclub.nsu.ru>.
chgpasswd.c: Allow old RAP change password to work with encrypted
passwords. Samba can now allow Windows 95/NT clients to securely
change the Lanman password ! (But not the NT hash - that gets lost).
ipc.c:
smbdes.c:
smbpass.c: Support for the above.
server.c: #ifdef'ed out fix for NT redirector bug.
util.c: Fix NIS bug with server name.
Jeremy.