Document the recent Kerberos SSL changes.

         *) applies to 0.9.6a/0.9.6b and 0.9.7

         +) applies to 0.9.7 only

  +) Changes to Kerberos SSL for RFC 2712 compliance:

     1.  Implemented real KerberosWrapper, instead of just using

         KRB5 AP_REQ message.  [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]

     2.  Implemented optional authenticator field of KerberosWrapper.

     Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,

     and authenticator structs; see crypto/krb5/.

     Generalized Kerberos calls to support multiple Kerberos libraries.

     [Vern Staats <staatsvr@asc.hpc.mil>,

      Jeffrey Altman <jaltman@columbia.edu>

      via Richard Levitte]

  +) Cause 'openssl speed' to use fully hard-coded DSA keys as it

     already does with RSA. testdsa.h now has 'priv_key/pub_key'

     values for each of the key sizes rather than having just