Bump version to 1.0.1-dev

Change-Id: Icb1e18fcfa0f1a508626a743f826f94e9037d199
diff --git a/VERSION b/VERSION
index 3eefcb9..3f60217 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.0
+1.0.1-dev