swupd: Add missing license header to the Pythonic code

This will ensure that everyone is aware of the project licensing conditions
immediately without having to dig around for the LICENSE file

Signed-off-by: Ikey Doherty <michael.i.doherty@intel.com>

swupd/__init__.py

@@ -1,4 +1,22 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# This file is part of python-swupd
+
+# Copyright © 2016 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 import subprocess
 import urllib2
 import os