Merge pull request #1277 from andytaylor/master

fixes ack problem where acks can slip in non xa on failover
Fix ServiceLoader ClassLoader

When calling ServiceLoader.load(), pass the current class's ClassLoader
instead of the TCCL.
Add info log about the supported protocol
Merge pull request #1281 from jmesnil/ServiceLoader_protocols

Fix ServiceLoader ClassLoader
https://community.jboss.org/thread/232591 - fixing typo accordingly to user
Merge pull request #1285 from clebertsuconic/master

https://community.jboss.org/thread/232591 - fixing typo accordingly to user
updated release readme
updates to version 2.4.0.Beta2
Revert "updates to version 2.4.0.Beta2"

This reverts commit 82dd8fddc669bd429501d9a8e11cc5a2a6c26dd2.