Return 2.1 branch to dev version

Change-Id: I4768a6ebfbb837a5dceb4c124314726ac84b3656
diff --git a/VERSION b/VERSION
index ac2cdeb..1ef72cb 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.1.3
+2.1.4-dev