Add content that can be used to trigger a release job w/o requiring bogus edits to sources

Change-Id: Ie57a48dc770a325a977e1ebc9e5d94fe0fabbedd
diff --git a/VERSION b/VERSION
index a8fdfda..00f91b8 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.8.1
+1.8.1-dev