ISPN-4112 RHQ library plugin: restart cache -- availability report DOWN
but cache running

* Added back in availibilty down for cache not running
* Added server changes to also report DOWN when cache not running
ISPN-4265 Make it possible to deploy c3p0 in OSGi
ISPN-4276 Make JPA cache store work in Karaf
ISPN-4422 Packages with custom classes are not exported properly for HotRod tests in OSGi

* change access protocol to http-remoting-jmx for WildFly
ISPN-4414 Compatible failover request load balancer for HR clients
ISPN-4414 Update documentation to use new request balancing interface