Merge branch '3.0-osx-fixes' into 3.0

Various fixes for wxOSX back ported from master.

include/wx/osx/nonownedwnd.h

@@ -113,7 +113,9 @@ public:
     virtual void HandleResized( double timestampsec );
     virtual void HandleMoved( double timestampsec );
     virtual void HandleResizing( double timestampsec, wxRect* rect );
-    
+
+    void OSXHandleMiniaturize(double WXUNUSED(timestampsec), bool miniaturized);
+
     void WindowWasPainted();
 
     virtual bool Destroy();

include/wx/osx/toplevel.h

@@ -81,6 +81,9 @@ public:
 
     virtual void SetRepresentedFilename(const wxString& filename);
 
+    // do *not* call this to iconize the frame, this is a private function!
+    void OSXSetIconizeState(bool iconic);
+
 protected:
     // common part of all ctors
     void Init();