Add support for repeatable JmsListener

Previously, a method could only declare one Jms endpoint so if several
destinations share the exact same business logic, you'd still need one
separate method declaration per destination.

We now make sure that JmsListener is a repeatable annotation, introducing
JmsListeners for pre Java8 use cases.

Issue: SPR-13147

src/asciidoc/integration.adoc

@@ -2577,6 +2577,10 @@ provides).
 The annotated endpoint infrastructure creates a message listener container
 behind the scenes for each annotated method, using a `JmsListenerContainerFactory`.
 
+TIP: `@JmsListener` is a _repeatable_ annotation so it is possible to associate several
+JMS destinations to the same method by adding additional `@JmsListener` declaration on
+it. For pre Java8 use cases, you can use `@JmsListeners`.
+
 [[jms-annotated-support]]
 ==== Enable listener endpoint annotations