switch to neo4j hosted locally

src/main/java/sensor2graph/Main.java

@@ -223,7 +223,7 @@ public class Main {
 		defaults.setProperty("geocoding_cache",               "data/geocoding_cache/"                     );
 		defaults.setProperty("concurrency",                   "10"                                        );
 		defaults.setProperty("http_agent",                    "Please/0.5"                                );
-		defaults.setProperty("neo4j_uri",                     "bolt://graphdb.gwdg.de:7687"               );
+		defaults.setProperty("neo4j_uri",                     "bolt://localhost:7687"                     );
 		defaults.setProperty("neo4j_server_certificate_file", "graphdb.gwdg.de.pem"                       );
 		defaults.setProperty("archive_uri",                   "https://archive.sensor.community/"         );
 		defaults.setProperty("pid_registry_uri",              "https://vm13.pid.gwdg.de:8000/api/handles/");