krb5: new tag krb5-1.13-beta1

[Tom Yu]

A new lightweight tag "krb5-1.13-beta1" has been created in the krb5
repository for the following commit:

commit bc6eaaa14cdeeaf1b057116c6d3ebf0b30781a36
Author: Tom Yu <tlyu at mit.edu>
Date:   Wed Sep 24 19:30:54 2014 -0400

    Updates for krb5-1.13-beta1