Release 2.5.0 tag

Change-Id: Ib7f4ae9419c9700fd0beb2f77c86851b25e6940f
diff --git a/VERSION b/VERSION
index 69fa968..437459c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.5.0-dev
+2.5.0