Release chameleon 4.0.0

Change-Id: I59c613f741b0043f6175a2bb7db3153f454fe4b7
diff --git a/VERSION b/VERSION
index d9b058f..fcdb2e1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.0.0-dev
+4.0.0