Added the gremlin shell and shortcut scripts
diff --git a/titan/cassandra.local b/titan/cassandra.local
new file mode 100644
index 0000000..48955ca
--- /dev/null
+++ b/titan/cassandra.local
@@ -0,0 +1,3 @@
+storage.backend=cassandrathrift
+storage.hostname=127.0.0.1
+storage.keyspace=onos
\ No newline at end of file