neo4j.conf: Use system timezone.

Fixes #12

flyem_snapshot/outputs/neuprint/scripts/neo4j.conf

@@ -11,6 +11,10 @@
 #*****************************************************************
 dbms.security.auth_enabled=false
 
+# This will make timestamps in the cypher output more consistent with
+# the python/bash logging statements that occur before and after neo4j ingestion.
+dbms.db.timezone=SYSTEM
+
 # The 'neo4j-admin memrec' tool recommends against a heap size larger than 31G
 # since above 32G Java will 'disable pointer compression, also known as
 # "compressed oops", in the JVM and make less effective use of the heap.'