krb5: new tag krb5-1.11-beta2

[Tom Yu]

A new lightweight tag "krb5-1.11-beta2" has been created in the krb5
repository for the following commit:

commit 94e2928244a2bbc45649a077a9b8297492452319
Author: Tom Yu <tlyu at mit.edu>
Date:   Wed Dec 12 20:05:14 2012 -0500

    README and patchlevel.h for krb5-1.11-beta2