Update test data to new model
Adapted to new model

CaseDatastore
(/=) Adapt queries to new model
(/=) Simplify suspectsForCaseQuery

CaseDatastore, CaseDatastoreInterface, DatastoreInterface
(/=) addConvictToCase is obsolete

ConvictionDatastore, ConvictionDatastoreInterface:
(/=) New interface&query adapt to new model

Conviction
(+) add new attributes to conviction from new model

ConvictionCreationServlet
(/=)use new interface