__init__.py:
- migrated to Neo4j 2.0 (omitStart and noIndex no longer needed)
- migrated to py2neo CypherQuery for streaming results
- reduced default introspection limit to 1000 to avoid heap space
problems
- added handling for StreamStatus objects
- fixed handling of Part and part numbers
- fixed handling of Beams
- special handling of Metadata is no longer needed?
- added full qualification for music21 namespace
- moved reference of MusicXMLElement to new namespace
- _listMusic21Classes() no longer ignores top-level objects
- fixed limitReturnToWhere
- removed automatic LIMIT to allow streaming
- removed erroneous handling of Cypher property TYPE

musicNetServer.py:
- changed addScoreInfo() to use sets for instruments and parts
- removed debugging