Fix routes and 'profissionais_controller'

Fixed :id params for 'escalas_prefeitura', changed to :id_escala.

Signed-off-by: Bruno Henrique Prybecz <bhp09@c3sl.ufpr.br>
Add missing validation in 'escalas_prefeitura'

Added validation for 'escalas_prefeitura' edit and update actions.

Signed-off-by: Bruno Henrique Prybecz <bhp09@c3sl.ufpr.br>
Fix application_controller

Fixed 'prefeitura_logo' not checking for empty field.

Signed-off-by: Bruno Henrique Prybecz <bhp09@c3sl.ufpr.br>