update helloword-mdb example

* use Java EE7 @JMSDestinationDefinition instead of hornetq-jms.xml to
define the JMS destinations.
* use Java EE7 MDB activation config property names
update helloworld-jms example

* use Java 7 try-with-resource block to create the JMS context
* clean up batch CLI scripts
Merge pull request #22 from jmesnil/helloworld-mdb-jms2

Update quick starts related to JMS