Add JmsUtil static class to hold jmsConfig and listenerConfigs. Add static types.
Fixed jms config changed handling. Moved DefaultJmsBeans to package.
Added possibility to start jms listeners later, e.g. in bootstrap.
When config.jms.manualStart=true, then add in bootstrap JmsUtils.startListeners()
Merge branch 'start-listeners-manually-in-bootstrap' of github.com:MayGo/grails-jms into feature/5_support_autostartup