Classes to represent concept full names & keys
Config adjustments
Refactored & improved i2b2/table_access table maps
Make OntologyTerm implement. match new interface
Refactoring in i2b2/tableaccess tests
Implementation of ConceptsResource service (inc.)

::getConceptsByCriteria() is still unimplemented. I have to check how
get_name_info is used by the JavaScript code.