removendo RoleType.weight
Novo CRUD de RoleType #1031

Fixes: #1031

- views, forms, models, migrations, tests, auditoría, etc.
ajuste pequeno no tamanho dos btn

de ``btn`` para ``btn-small``
fix footer, removido <div> tag extra
Merge pull request #1032 from jfunez/1031_novo_crud_role_type

1031 novo crud role type