Correct name of neo4j datatype class

Its neo4j.Neo4jDB: https://github.com/galaxyproject/galaxy/blob/dev/lib/galaxy/datatypes/neo4j.py#L89

config/plugins/interactive_environments/neo/config/neo.xml

@@ -7,7 +7,7 @@
             <model_class>HistoryDatasetAssociation</model_class>
             <!-- here you filter out which types of datasets are appropriate for this GIE.
             The Neo4jDB datatype is generated by the build_ctb_gene tool in the test toolshed.-->
-            <test type="isinstance" test_attr="datatype" result_type="datatype">Neo4jDB.Neo4jDB</test>
+            <test type="isinstance" test_attr="datatype" result_type="datatype">neo4j.Neo4jDB</test>
             <to_param param_attr="id">dataset_id</to_param>
         </data_source>
     </data_sources>