Fixed faulty generated SQL database schemas
Added Cell Line Ontology and NCImetathesaurus ontology to the model, and use them in specimen.
Purified cell type can have annotations from Cell Ontology, CellLineOntology or EFO
There can be more than one group doing the experiments and the analysis
features from experiments are now hashes instead of arrays
BLUEPRINT DCC model release 0.3.2.1

*	Added several CVs: NCI and CLO
*	experimental_group_id and analysis_group_id are now sets.
*	features in experimental metadata were arrays and now they are hashes.
*	Added platform_model to the experimental metadata.