Minor changes in code and documentation, preparations for unit tests

pydgets/cowsay.py

-#https://github.com/piuccio/cowsay
+# TODO: Implement library similar to the https://github.com/piuccio/cowsay

pydgets/tests/test_widgets.py

+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+#-------------------------------------------------------------------------------
+# Copyright (C) since 2016 Jan Mach <honza.mach.ml@gmail.com>
+# Use of this source is governed by the MIT license, see LICENSE file.
+#-------------------------------------------------------------------------------
+
+import unittest
+from unittest.mock import Mock, MagicMock, call
+from pprint import pformat, pprint
+
+import os
+import sys
+import shutil
+
+# Generate the path to custom 'lib' directory
+#lib = os.path.abspath(os.path.join(os.path.dirname(__file__), '../../'))
+#sys.path.insert(0, lib)
+
+import pydgets.widgets
+
+class TestWidgets(unittest.TestCase):
+
+    def setUp(self):
+        pass
+    def tearDown(self):
+        pass
+
+    def test_01_basic(self):
+        """
+        Perform the basic operativity tests.
+        """
+        self.assertTrue(True)
+        self.assertEqual(0, 0)
+
+if __name__ == "__main__":
+    unittest.main()