Bump version to v0.4.4

Signed-off-by: Jess Frazelle <acidburn@jessfraz.com>
diff --git a/VERSION.txt b/VERSION.txt
index f87d474..79b0815 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-v0.4.3
+v0.4.4