Adding Code of Conduct

Change-Id: I022ceaf387af9f3fd3d19d2d1aa9632c8e54273c
diff --git a/VERSION b/VERSION
index c52db98..72a440f 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.5.3
\ No newline at end of file
+0.5.4-dev