Move top level packages to internal.

internal/versioner/versioner.go

@@ -0,0 +1,13 @@
+// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
+// All rights reserved. Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file.
+
+// Package versioner implements common interfaces for file versioning and a
+// simple default versioning scheme.
+package versioner
+
+type Versioner interface {
+	Archive(filePath string) error
+}
+
+var Factories = map[string]func(repoID string, repoDir string, params map[string]string) Versioner{}