Typos fixed, more true/false --> True/False changes, etc

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@19549 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/_extras.py

@@ -640,6 +640,9 @@ class _DeprecatedNonBool:
         import warnings
         warnings.warn("Use Python's %s instead" % self.__txt, DeprecationWarning, 3)
         return self.__val
+    def __nonzero__(self):
+        return self.__int__()
+
 
 TRUE  = true  = _DeprecatedNonBool(True, 'True')
 FALSE = false = _DeprecatedNonBool(False, 'False')