added oldX/oldY for TraceCanvas.as
added oldX/oldY for TraceCanvas.as


tectronics/touchlib,usefulthink/touchlib,tectronics/touchlib,ebour/touchlib,Artemid/touchlib,ehsan108190/touchlib,VTalyh/touchlib,AmitVashisht/touchlib,ehsan108190/touchlib,MindScriptAct/touchlib,ebour/touchlib,usefulthink/touchlib,MindScriptAct/touchlib,Artemid/touchlib,AmitVashisht/touchlib,Artemid/touchlib,VTalyh/touchlib,tectronics/touchlib,AmitVashisht/touchlib,MindScriptAct/touchlib,usefulthink/touchlib,ebour/touchlib,ehsan108190/touchlib,thidinhnguyen91/touchlib,VTalyh/touchlib,thidinhnguyen91/touchlib,thidinhnguyen91/touchlib