native delete flash cookies from browser support

the less addons we have to use to do things as simple as this the better because if it’s native then the bugs will more than likely be fixed with dragon it’s self instead of having to wait for dragon devs and addon devs to jive right with each other. considering dragon is all about security and privacy, it would make sense for this to be native. also allow the user to use gutman deletion or to manually set the passes like the browser notrace. allow the user to use advanced data deletion methods for all data instead of just flash cookies