VOL-2133 release 2.2.4

Change-Id: I673557107a997af8b1f2d0f1cf83f00f8b3643dc
diff --git a/VERSION b/VERSION
index bdbe651..530cdd9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.4-dev
+2.2.4