Remove lastX and lastY, but kept the support
Remove lastX and lastY, but kept the support

lastX and lastY will be good if movementX and movementY are not supported, Instead checks if they are not supported and set them as properties to the MouseEvent object !

Former-commit-id: 9e848ee3c37602616a825b187459accc45c02250
WhitestormJS/whs.js,WhitestormJS/whs.js