Write tests for bulk io part

Some test classes have been moved under nuxeo-core-io test part. But nuxeo-core-io test module is a dependency of nuxeo-core-test (former location) to enforce backward compatibility. TransactionalFeature has been moved from nuxeo-core-test to nuxeo-runtime-test . With this move, we no longer need ContainerFeature . This feature has been removed, you can get same behavior by annotating your test class with: @RunWith(FeaturesRunner.class) @Features(TransactionalFeature.class) @TransactionalConfig(autoStart = false ) public class MyTest { ... } By that, we also introduce two new features: CoreIOFeature and CoreBulkFeature which deploy needed components to use/test the feature.