release: generate phone numbers and associated them with people
release: add phone number validation test
release: add validation test for person_id presence
release: add test to ensure phone number responds to person
Merge branch 'feature-implement-phone-numbers' into develop
release: seed database; apply basic styling to views
release: display all phone numbers in people/show view
release: further testing with phone numbers (not complete)
Merge branch 'feature-integration-testing' into develop