WIP: pymod tests work for Qt4 now too.

testdata/pymod/import_QtDesigner.py

@@ -29,6 +29,7 @@ class BasicTest(unittest.TestCase):
     self.assertEqual("QFormBuilder" in QtDesigner.__all__, True)
 
   def test_2(self):
+    app = QtCore.QCoreApplication([ "appname" ])
     q = QtDesigner.QFormBuilder()
 
 # run unit tests

testdata/pymod/import_lay.py

@@ -18,7 +18,8 @@
 
 import pykl.QtCore
 import pykl.QtGui
-import pykl.QtWidgets
+if not "QApplication" in pykl.QtGui.__all__:
+  import pykl.QtWidgets  # Qt5
 import pykl.lay as lay
 import unittest
 import sys