* JMS-in-gateway: destination to requestDestination Related to https://stackoverflow.com/questions/66174779/what-is-the-dsl-version-of-int-jmsinbound-gateway-request-destination In Java DSL, the `JmsInboundGatewaySpec` expose a `destination()` option which is not correlated what we have in XML with a `request-destination` and what we have with a `replyQueue` option * Deprecate an existing `destination()` option in the `JmsInboundGatewaySpec` in favor of newly introduced `requestDestination()` * Clean up a bit `jms.adoc` and add some code block-switch sections to show Java & Kotlin DSLs along side with existing XML configs * Fix typo. Co-authored-by: Gary Russell <grussell@vmware.com>