[jcifs] jcifs-krb5-1.2.9 released / Kerberos Authentication Support

[Michael B Allen]

This package is stock jcifs-1.2.9 modified to support Kerberos 5 /
SPNEGO extended security authentication. Please note that this has no
impact on the HTTP Filter which still only supports NTLM.

The examples/KerberosAuthExample.java is included to demonstrate using
this package however note that this example initializes a logon context
from a username and password. In the steady-state it is more likely that
the user will already have a credential (e.g. via kinit) in which case
your application code would be different. You will need to familiarize
yourself with JGSS and it's Krb5LogonModule to fully utilitize this
new feature.

WARNING: This package has been reported to work by several users
however the code has not been examined carefully by jCIFS maintainers
and therefore should be considered highly experimental.

Note: This package has been compiled with Java 1.5. It may work with
eariler versions of Java but you will need to recompile and experiment
to determine what the precise requirements are.

Great thanks to Mr. Shun from Japan for contributing this work. Ever
notice Japan always get's new stuff first?