FIX:fixed some issues with sending prints

1. send to printer change to send to print sd card
2. update the default error message
3. display networking error messages on the page

Change-Id: I27b67091e9449bb9d469f9ded53148e0b1a74369

src/slic3r/GUI/ReleaseNote.hpp

@@ -83,6 +83,7 @@ class SecondaryCheckDialog : public DPIDialog
 public:
     SecondaryCheckDialog(wxWindow* parent);
     void update_text(wxString text);
+    bool is_english_text(wxString str);
     wxString format_text(wxStaticText* st, wxString str, int warp);
     ~SecondaryCheckDialog();
     void on_dpi_changed(const wxRect& suggested_rect) override;