fix codestyle according to psr and changed the visibility of the setUp into protected

I asked it here: https://github.com/fabpot/PHP-CS-Fixer/issues/384#issuecomment-53536535
Under the "Choose from the list of available fixers:" in the readme (https://github.com/fabpot/PHP-CS-Fixer) you can see other non-psr standards (symfony standards, and others (they are marked with [all] tag)