[VOL-4138] Moving ONOS to 2.5 version, including now external SR app

Change-Id: I4ad847b9ee0e2bf2b23d08d24c167f95227d0dfb
diff --git a/VERSION b/VERSION
index cca25a9..0062ac9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.4.1
+5.0.0