School schema.
Educational attainment history.
Changed the foreign key.
Fixed up all the associations.
Made everything nullable.
Schema for ailments, medications and allergies.
Created all the join tables.
Financial informaton schema.
Emergency information schema.
Missed a test for assocations.
Housing histories.
Merge branch 'feature/schemas' into release/0.4.4
Merge branch 'release/0.4.4' into develop
Merge branch 'develop'