Changed exception type
Changed exception type

Changed exception interface 'Throwable' by the explicit class '\Exception' in order to fix https://github.com/doctrine/DoctrineMongoDBBundle/issues/488
alcaeus/DoctrineMongoDBBundle,alcaeus/DoctrineMongoDBBundle,malarzm/DoctrineMongoDBBundle,malarzm/DoctrineMongoDBBundle,doctrine/DoctrineMongoDBBundle