Removed leaks from Forty demo

Added VC++ project file for artprov sample
Updated file lists


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15004 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

demos/forty/forty.h

@@ -16,6 +16,8 @@
 class FortyApp: public wxApp
 {
 public:
+    FortyApp();
+    ~FortyApp();
 	bool OnInit();
 
 	static const wxColour& BackgroundColour();