Bumping version after VOLTHA-2.6 release

Change-Id: I1abdfdd635438be735262c0091a09552c5f1e81a
diff --git a/VERSION b/VERSION
index 9df886c..59b9db0 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.4.2
+1.5.0-dev