Cleaned out the tests folder. Added simple test gerber. Added simple unit test using the GUI.

tests/test_paint.py

@@ -6,6 +6,7 @@ from matplotlib.pyplot import plot, subplot, show, cla, clf, xlim, ylim, title
 from camlib import *
 from copy import deepcopy
 
+
 def mkstorage(paths):
     def get_pts(o):
         return [o.coords[0], o.coords[-1]]
@@ -208,4 +209,4 @@ class PaintConnectTest3(PaintTestCase):
 
 
 if __name__ == '__main__':
-    unittest.main()
+    unittest.main()