Bring packaging branch up to date

tests/test_TagPlot_matplotlib.py

 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-'''
+"""
 Unittests for TagPlot_matplotlib
-'''
+"""
+
 import unittest
 from TagPlot_matplotlib import TagPlot_matplotlib
 import numpy as np
@@ -22,13 +23,11 @@ color2 = 'yellow'
 fig1 = plt.figure()
 plt.plot(x, y, color=color1)
 plt.plot(x, y_2, color=color2)
-plt.clf  # Close figure
 
 # 2.Figure
 fig2 = plt.figure()
 plt.plot(x, y, color=color2)
 plt.plot(x, y_2, color=color1)
-plt.clf  # Close figure
 
 fig = [fig1, fig2]