Add patient uniqueness validation
Add validation for required fields in new patient form
Add scenarios for new patient with same name but different dob (and vice versa)
Merge branch 'master' of github.com:denissezavala/medical

Conflicts:
	app/controllers/patients_controller.rb
	app/views/patients/new.html.haml
	features/add_new_patient.feature
	features/step_definitions/patient_steps.rb