Move simple test script

demo/simple_test.py

@@ -72,7 +72,7 @@ hstackedbar.add('--->', rng3)
 with open('out-horizontalstackedbar.svg', 'w') as f:
     f.write(hstackedbar.render())
 
-line = Line(Config(y_scale=.0005, include_x_axis=True))
+line = Line(Config(y_scale=.0005))
 rng = range(-30, 31, 5)
 line.add('test1', [1000 + cos(x / 10.) for x in rng])
 line.add('test2', [1000 + sin(x / 10.) for x in rng])

setup.py

@@ -31,7 +31,7 @@ setup(
     packages=['pygal'],
     provides=['pygal'],
     keywords=["svg", "graph", "diagram", "plot", "histogram", "kiviat"],
-    tests_require=["pytest"],
+    tests_require=["pytest", "flask"],
     package_data={'pygal': ['css/*']},
     install_requires=['lxml'],
     classifiers=[