WIP: PDB-119 Pin to RSA ciphers for all jdk's to work-around Centos 6 EC failures

We're seeing EC cipher failures for Centos 6 boxes, this patch pins the ciphers
to RSA only for all JDK's now to work-around the problem.

(note: this is pretty brutal, but will fix the issue - what's more we still don't understand _why_ this is failing yet)

Signed-off-by: Ken Barber <ken@bob.sh>