JIRA: https://jira.spring.io/browse/INT-3778
* Add Namespace support for STOMP adapters
* Document the STOMP module
* Fix race condition in the `AbstractStompSessionManager`
* Add `handleTransportError` to the `StompInboundChannelAdapter` and `StompMessageHandler` to log errors during STOMP interactions
* Fix `StompMessageHandler` to handle `RECEIPT` in case of `RECEIPT` header existence, not the common `autoReceipt` option
which can be disable, but the `RECEIPT` header may be present in the message to send
* Increase logging level for the STOMP tests to trace sporadic failures on the CI Server
* Fix several typos
INT-3778: Doc Polishing
d89dabe72f