now, ModelBackedView implements #tagName, #actionText and #submitButtonText

defaults tagName to form, to handle submit buttons
methods return:
- “Nuevo”, “Editar” (a record)
- “Crear”, “Actualizar” (a record)
showing cliente (using same styles as user)
ModelBackedView already implements tagName
unbounding imagen_url_small on me.index template

should we unbound everything? nothing?
implementing new ModelBackedView inherited properties
adding clientes/:cliente_id/edit