Add header to the absubmit plugin

beetsplug/absubmit.py

@@ -1,3 +1,18 @@
+# -*- coding: utf-8 -*-
+# This file is part of beets.
+# Copyright 2016, Pieter Mulder.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+
 """Calculate acoustic information and submit to AcousticBrainz.
 """