8168518: rcache interop with krb5-1.15
Reviewed-by: xuelei

8130112: Create a common TEST.properties for @modules in test/sun/security/krb5/auto
Reviewed-by: alanb

8081347: Add @modules to jdk_core tests
Reviewed-by: alanb, joehw, lancea
Contributed-by: alexander.kulyakhtin@oracle.com, alan.bateman@oracle.com, mandy.chung@oracle.com

8001326: Improve Kerberos caching
Reviewed-by: valeriep