Start version 2.2.5-dev0

Change-Id: Ie197c3a0a9031b85c40eb5fe25fb76c7abe34029
diff --git a/VERSION b/VERSION
index 530cdd9..7b06a96 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.2.4
+2.2.5-dev0