Service layer to provide JMS Broker integration 
It implements support for Producing, Synchronous Consuming and
Asynchronous consuming.
Integrates Message Converting, Tracing, JMSProperties processing and
MessageSelector support.
-Reorganize JMSService hierarchy.
Extend JMSSynService to implement JMSTemplates operations. Message
producing and synchronous consuming.
Extend JMSAsyncService to implement async message consuming.

A single repository cannot mix sync and async consuming, but hierarchy
is now much more clear.

-New test case and repository for transacted sessions.
Usefull to avoid consuming broker message throwing any exception.
Minor changes in dependencies management
Remove unnecessary JMS dependencies in JPA modules
JMS Implementation dependency removed from parent pom.
comment jms dependencies instead removing
Include jms spec dependency
Merge pull request #52 from sergiorc/master

Messaging integration module (JMS)