* identity: Add GSSAPI suport for FreeIPA authentication
This enables the usage of GSSAPI for authentication, instead of having
to pass the username and password as part of the playbook run.
If there is GSSAPI support, this makes the password optional, and will
be able to use the KRB5_CLIENT_KTNAME or the KRB5CCNAME environment
variables; which are standard when using kerberos authentication.
Note that this depends on the urllib_gssapi library, and will only
enable this if that library is available.
* identity: Add documentation for GSSAPI authentication for FreeIPA
This documentation describes how to use GSSAPI authentication with the
IPA identity modules.
* identity: Add changelog for GSSAPI support for IPA
This adds the changelog entry for the GSSAPI authentication feature for
the IPA identity module.
