Bump version to 1.0.3-dev

Change-Id: Id177b73cd0affebf4af4d327038437e8dfa15f2f
diff --git a/VERSION b/VERSION
index 6d7de6e..516e6a4 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.2
+1.0.3-dev