Switched to using True/False in the wxPython lib and demo instead of

true/false or TRUE/FALSE to prepare for the new boolean type and
constants being added to Python.  Added code to wx.py to test for the
existence of the new constants and to create suitable values if not
present.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@19335 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/DialogUnits.py

@@ -88,13 +88,13 @@ if __name__ == "__main__":
 
             # Create an instance of our customized Frame class
             frame = MyFrame(None, -1, "This is a test")
-            frame.Show(true)
+            frame.Show(True)
 
             # Tell wxWindows that this is our main window
             self.SetTopWindow(frame)
 
             # Return a success flag
-            return true
+            return True
 
 
     app = MyApp(0)     # Create an instance of the application class
@@ -107,7 +107,7 @@ if __name__ == "__main__":
 def runTest(frame, nb, log):
     win = MyFrame(frame, -1, "This is a test")
     frame.otherWin = win
-    win.Show(true)
+    win.Show(True)
 
 
 overview = """\