Fix config_reference.feature
Fix config_reference.feature

Generation of config reference is responsiblity of Symfony2 config component. We trust this guy to
do his job and rely on him. Our responsiblity is just to make sure that we properly call him and
reproduce its entire output to the stdout.

Behat/Behat,Taluu/Behat,v-abramchuk/Behat,spolischook/behat,spolischook/behat,spolischook/behat