[Hawkular-dev] agent can now report when the server needs to be reloaded/restarted

I released a new command-gateway and wildfly-agent today. The agent can now report when a WildFly server needs to be restarted or reloaded in order to pick up changes. There is a server-state resource config property on the WildFly server resource, and when the UI sends a websocket request to do something, it will get back a server-refresh-indicator in the websocket response if a restart or reload is required.