Updated description preset line for each type of presets...

Disabled m_btn_delete_preset for default and system presets.
Enabled update of the current preset if it was modified and selected again.

xs/src/slic3r/GUI/Tab.hpp

@@ -265,6 +265,7 @@ public:
 
 protected:
 	void			on_presets_changed();
+	void			update_preset_description_line();
 	void			update_frequently_changed_parameters();
     void            update_wiping_button_visibility();
 	void			update_tab_presets(wxComboCtrl* ui, bool show_incompatible);