A few fixes

example/ui.go

@@ -92,7 +92,7 @@ func (ui *Ui) run() error {
 
 		case *tcell.EventKey:
 			if ev.Key() == tcell.KeyCtrlC {
-				ui.stop()
+				ui.Exit()
 				return nil
 			}
 			ui.screen.HandleKey(ev)
@@ -115,7 +115,7 @@ func (ui *Ui) SetScreen(scr *UiScreen) {
 	ui.screen.HandleResize(tcell.NewEventResize(ui.GetSize()))
 }
 
-func (ui *Ui) stop()    { ui.running = false }
+func (ui *Ui) Exit()    { ui.running = false }
 func (ui *Ui) cleanup() { ui.tScreen.Fini() }
 
 const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"