Merge pull request #1 from jvandesande/RelationTemplates

Allow mongo relation templates to be overwritten by config
Merge branch 'master' of github.com:sonata-project/SonataDoctrineMongoDBAdminBundle
Fixed Composer dependencies for master/2.2 branch
Merge pull request #51 from joostfarla/composer

Fixed Composer dependencies for master/2.2 branch