Altered test.xml to have a declaration of the file format. XMLPacketMaker has slightly different error handling.
Now contains comments and another way of specifying an empty tag to see if the XMLPacketMaker can handle it all (oh and it does). Nice.
Updated the test.xml file to contain slightly more realistic data ;-) The XMLPacketMaker main method now handles attributes within XML opening tags. Read the comments in the file to see how these are dealt with. Go on, you know you want to.
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