[Building Sakai] Kerberos provider now using central auth cache in trunk

[Seth Theriault]

Hello,

The changes required to make the KerberosUserDirectoryProvider 
use the central authentication cache noted here:

http://jira.sakaiproject.org/browse/SAK-10227

have been committed to trunk (future 2.7):

http://source.sakaiproject.org/viewsvn?view=rev&revision=66177

In addition, the documentation has been crought up to date:

http://source.sakaiproject.org/viewsvn?view=rev&revision=66178

Many thanks to Matthew Buckett (who contributed the original 2.5 
patch on which this work is based) and Ray Davis for their work 
on this change.

Seth