QPID-5928: [Java Broker] Further enhancements and feedback changes for
initial implementation

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1614644 13f79535-47bb-0310-9956-ffa450edef68
QPID-5946 : [Java Broker] Add alternative KeyStore implementation that can use standard crt/pem rather than jks files

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1614652 13f79535-47bb-0310-9956-ffa450edef68