- moved all supported binary data types to the new binary.py
- changed GeneTrack data type to subclass from Text rather than Binary
- added Sff data type to datatypes_conf.xml.sample
- merged test_sniffinad_and_metadata_settings.py test scritp into test_get_data.py
- added several additional functional test for data types to test_get_data.py
- fixed some bugs in upload.py when uploading binary data types