VOL-2258 return to dev version

Change-Id: I0b17a6d747d5a827ee79daf507f4c3a22e02fd08
diff --git a/VERSION b/VERSION
index b1b25a5..7dd050c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.2
+2.2.3-dev