Added configuration class
Moved some of the common code into the Data class

- Added a Configure class for sharing some dependencies
More consolidation
Adedd a function for printing synapses
Adding test script for writing a neuroml file from networkx+rdf
Wrote an add_reference method for Neuron

- Replaced the 'molecule' URIs with BNodes
Corrected get_reference test
Added a test for the BerkeleyDB
Interfacing with sparql endpoint (no updates)
Corrected add reference test
Added nquads dump of database
Switched to Digital Ocean server
Rewrote add_reference into the Data class
Separated Configure from Configureable
Added a DataUser class
Rewrite of add_reference

- Added a default config
- Exploratory tests for RDFlib
Added test cases, stubs
Corrected errors in unit tests
Relationship stubs

- Was missing dataObject.py
More tests for evidence, quantity

- A couple of errors remain in the tests
- Stubs and naive implementations to prevent errors in test code