Panel: initialize cursorOn member

Panel.c:496:14: runtime error: load of value 190, which is not a valid value for type 'bool'

Panel.c

@@ -59,6 +59,7 @@ void Panel_init(Panel* this, int x, int y, int w, int h, const ObjectClass* type
    this->oldSelected = 0;
    this->selectedLen = 0;
    this->needsRedraw = true;
+   this->cursorOn = false;
    this->wasFocus = false;
    RichString_beginAllocated(this->header);
    this->defaultBar = fuBar;