krb5: new tag kfw-4.0.1-beta1

[Tom Yu]

A new lightweight tag "kfw-4.0.1-beta1" has been created in the krb5
repository for the following commit:

commit b81826a8888f69f2c3c6c99822ca2895f7b26d22
Author: Ben Kaduk <kaduk at mit.edu>
Date:   Wed Dec 5 16:53:26 2012 -0500

    Ready for KfW 4.0.1 beta 1
    
    Bump versions where appropriate, and drop buildlevel back to zero
    for the new version.
    
    While here, remove KRB5_RELTAG and KRB5_RELDATE from
    src/windows/kerberos.ver as they are unused and merely serve
    to cause confusion with the values in src/patchlevel.h.
    
    [tlyu at mit.edu: update patchlevel.h too]