cpu-1.4.1 released

In addition to the usual bug fixes, several important features have been added. One can now violate POSIX naming conventions (for use with Samba) with the -o switch. Also, the user operations now work exactly the same way as the GNU shadow-utils with respect to groups. When a user is deleted they are now removed from any secondary groups they were in. When a users secondary groups are modified they are removed from old secondary groups and added to new secondary groups. When a users primary group is changed they are no longer added to that group via a memberUid.