bumped version to 3.3 stable
bumped version to 3.3 stable

symfony/symfony-standard,Tobion/symfony-standard,simonjcarr/symfony_rest,kmelia/fresh-symfony,kmelia/fresh-symfony,stof/symfony-standard,simonjcarr/symfony_rest,symfony/symfony-standard,debruyne0/symfony,stof/symfony-standard,Tobion/symfony-standard,debruyne0/symfony,kmelia/fresh-symfony