Added Confirmation Message on Window Close
Added Confirmation Message on Window Close

ghondar/PowderPlayer,faisal00813/PowderPlayer,libai/PowderPlayer,jaruba/PowderPlayer,faisal00813/PowderPlayer,libai/PowderPlayer,jaruba/PowderPlayer,ghondar/PowderPlayer,EdZava/PowderPlayer,EdZava/PowderPlayer,daju1/p2pPlayer,daju1/p2pPlayer