XMLReaderIterator v0.1.7.

- fixed error conditions in XMLSequenceStream
- fixed XMLReaderNode::dump() isEmptyElement handling
- fixed example tests with stream-wrappers
- added XML sequence file support for xml-file-scanner
- added xmlreader standard behavior example
Added XMLReaderNavigator
Added uml diagram.
Added local-name support for XMLReaderNode
Iterate over local-names

Changed iteration to local-names for consistency as common behavior with
XMLReader::next().