Add JMS SimpleMessageListenerContainer

First building blocks of JMS messaging have been added in http://jira.springframework.org/browse/SESPRINGPYTHONPY-12. What's still missing is the ability to run background JMS listeners which would utilize the newly added JMS features. In Java Spring, such listeners are wrapped in a SimpleMessageListenerContainer object and the purpose of this ticket is to add such an object to Spring Python. The API will closely resemble that of Java Spring unless, of course, a more Pythonic constructs will seem to be more appropriate.

Not sure how long it's going to take hence I'm not setting a fix version yet.