Resolves: bug 201332
Bug Description: The password modify extop is not allowed when a
password change is required (expired, etc.). This operation
should be allowed.
Reviewed by: ???
Files: see diff
Fix Description: The fix is to let extended operations pass through
connection_need_new_password(), then check if the extended operation
is the password modify extop if a password is expired in do_extended().
If the extended operation is something else, we return an error 53
along with the password expired control.
Platforms tested: F9
Flag Day: no
Doc impact: no