[Validator] renamed methods that do not follow CS
[Validator] renamed methods that do not follow CS

requiredOptions -> getRequiredOptions
targets -> getTargets
defaultOption -> getDefaultOption

tomasbro/DoctrineMongoDBBundle,jahller/DoctrineMongoDBBundle,Soullivaneuh/DoctrineMongoDBBundle,juchi/DoctrineMongoDBBundle,malarzm/DoctrineMongoDBBundle,alcaeus/DoctrineMongoDBBundle,Soullivaneuh/DoctrineMongoDBBundle,stof/DoctrineMongoDBBundle,castarco/DoctrineMongoDBBundle,malarzm/DoctrineMongoDBBundle,jahller/DoctrineMongoDBBundle,juchi/DoctrineMongoDBBundle,sarcher/DoctrineMongoDBBundle,0mars/DoctrineMongoDBBundle,tomasbro/DoctrineMongoDBBundle,alcaeus/DoctrineMongoDBBundle,0mars/DoctrineMongoDBBundle,doctrine/DoctrineMongoDBBundle,castarco/DoctrineMongoDBBundle