Move packages out of dirs

Fixes #2

pkg/gobmarsh/marshal.go

@@ -1,22 +0,0 @@
-package gobmarsh
-
-// Easier marshalling to and from gob encoding
-
-import (
-	"bytes"
-	"encoding/gob"
-)
-
-func Marshal(v interface{}) ([]byte, error) {
-	b := new(bytes.Buffer)
-	err := gob.NewEncoder(b).Encode(v)
-	if err != nil {
-		return nil, err
-	}
-	return b.Bytes(), nil
-}
-
-func Unmarshal(data []byte, v interface{}) error {
-	b := bytes.NewBuffer(data)
-	return gob.NewDecoder(b).Decode(v)
-}