Added wxDragLink

Added SetURL to wxURLDataObject

Fixed the Mozilla problem by reversing the order of the component DOs
in the wxURLDataObject.  By checking the wxTextDataObject first then
it avoids the problem of how Mozilla sends the UniformResourceLocator
data.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12166 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/dataobj.h

@@ -467,6 +467,7 @@ private:
     {
     public:
         wxString GetURL() const { return GetText(); }
+        void SetURL(const wxString& url) { SetText(url); }
     };
 #endif // __WXMSW__/!__WXMSW__