complications model, csv and rake task
hospital model, csv and migration
patient survey model and migration
outcome model
updated schema
WIP procedure model and procedure migration
hospitals procedures model and migration
added primary and foreign keys to make join table associations work
added foreign key to join table
Merge pull request #12 from Ank13/rake

Rake - Migrations, models, CSV parsing
Merge pull request #13 from Ank13/test

Test
model test just the beginning