Adding mongodb to default autoloader so tests will run.

autoload.php.dist

@@ -7,6 +7,7 @@ use Symfony\Framework\UniversalClassLoader;
 $loader = new UniversalClassLoader();
 $loader->registerNamespaces(array(
     'Symfony'                    => __DIR__.'/src',
+    'Doctrine\\ODM\\MongoDB'     => __DIR__.'/vendor/doctrine-mongodb/lib',
     'Doctrine\\Common'           => __DIR__.'/vendor/doctrine-common/lib',
     'Doctrine\\DBAL\\Migrations' => __DIR__.'/vendor/doctrine-migrations/lib',
     'Doctrine\\DBAL'             => __DIR__.'/vendor/doctrine-dbal/lib',