Set Faculty.TBA.facultyNumber to 0.
Stub for SectionDaoTest & its dataset.
Made Schedule.TBA public.
Changed 'privateKey' to 'primaryKey'.
Implemented first dbUnit test -
SectionDaoTest.testGetByIdSubjectNoPrerequisites(). Implemented very
inefficient routine in SectionDao.getById() just to show process of make
things work before refactoring. Needs to be refactored to use one
SELECT/JOIN statement instead of 3 separate SQL statements.