Added IsTopLevel() as a virtual function.

Added fontenum.hto filelist.txt,
  Changed window positioning code again,
  some more related things.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4372 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk1/frame.h

@@ -96,6 +96,8 @@ public:
     virtual void Restore();
     virtual void Iconize( bool iconize );
     virtual bool IsIconized() const;
+    
+    virtual bool IsTopLevel() const { return TRUE; }
 
     virtual void Command( int id );