Allow to retrieve the JMSProperties when using JMS Stream (ActiveMQInputStream)

When using JMS Streams (aka ActiveMQInputStream and ActiveMQOutputStream) its impossible to retrieve the used JMS Properties which where used while writing the OutputStream. The only method which allows this is the ActiveMQInputStream.receive() method. But this will corrupt the InputStream because it will remove the Message from it.

So I think it makes sense to add a method for retrieving the Properties. I also think the receive() method should be private or protected to guard against wrong usage ( I used it before to retrieve the properties and wondered why it corrupted the stream).