[CORD-3226] Add support for multi IP / dual stack to the fabric synchronizer

Change-Id: Iba774d58624b261aea237429eb31464f36cbfe42
diff --git a/VERSION b/VERSION
index cd57a8b..08ec77d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.1.5
+2.1.6-dev