update getChildren method
update getChildren method

lemoinem/DoctrineBehaviors,KnpLabs/DoctrineBehaviors,shieldo/DoctrineBehaviors,mediahost/DoctrineBehaviors,nick4fake/DoctrineBehaviors,ksom/DoctrineBehaviors,MakG10/DoctrineBehaviors,DerekRoth/DoctrineBehaviors,MAXakaWIZARD/DoctrineBehaviors,bocharsky-bw/DoctrineBehaviors,vba-ds/DoctrineBehaviors,digitalkaoz/DoctrineBehaviors,j-ledoux/DoctrineBehaviors