Fix for:
- DIRSTUDIO-872 (The list of possible Kerberos encryption type should be available)
- DIRSTUDIO-873 (Kerberos encryption types are not saved correctly)


git-svn-id: https://svn.apache.org/repos/asf/directory/studio/trunk@1446115 13f79535-47bb-0310-9956-ffa450edef68