update commands.go

update docker.go

move to pkg

update docs

update name and copyright

change --sinceId to --since-id, update completion and docs

Docker-DCO-1.1-Signed-off-by: Victor Vieux <victor@docker.com> (github: vieux)

mflag/export_test.go

@@ -0,0 +1,17 @@
+// Copyright 2014 The Docker & Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package mflag
+
+import "os"
+
+// Additional routines compiled into the package only during testing.
+
+// ResetForTesting clears all flag state and sets the usage function as directed.
+// After calling ResetForTesting, parse errors in flag handling will not
+// exit the program.
+func ResetForTesting(usage func()) {
+	CommandLine = NewFlagSet(os.Args[0], ContinueOnError)
+	Usage = usage
+}