CAMEL-6093: Fixed having 2+ routes from the same JMS queue, not stop the endpoint if there are still active listeners when a route is stopped.

Conflicts:
	components/camel-jms/src/main/java/org/apache/camel/component/jms/JmsEndpoint.java
	components/camel-jms/src/test/java/org/apache/camel/component/jms/TwoConsumerOnSameQueueTest.java