Added MessageSelector details to Receiver report
Xpath datatypes (string, integer, float, double, boolean) are now converted as Java objects, te be used as JMS property objects
Abort 'initialise' when an error occurs; an XPathException is thrown
Introducing an important difference between jmsConfig parameters and messageProperties:
Where as JMS allows to send a (subset) of java primitive types, for the configuration of the JMS connection we need strings only (for the time being).