upgrading version to next release version

Change-Id: I26db0d7697e333df585c9f86e565328d5338ba8f
diff --git a/VERSION b/VERSION
index f0bb29e..c3f0d2b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.3.0
+1.4.0-dev