Edit and Delete artists
Refactor artist integration tests
Add link helpers to Artist views
Add Artist validations and render view errors if creating invalid artist
Refactor Artist#edit action to render validation errors
Refactor ArtistsController to use a before_action filter
Add flash for Artist's actions and add migration for additional Artist attributes
Use partials for forms and add additional attributes to Artist views
Implement basic grid and styling
Add styling for flash messages
Fix mobile menu
Add styling for error notice messages
Add additional strong parameters to ArtistsController and update index.html.erb page to use analysis instead of biography
Clean up typography in artists resource views