SimpleKinetic 

A basic utility to add kinetics effect.

#### Basic Example

``js
var sk = new SimpleKinetic({
onstart: function (
currentX, currentY,
diffX, diffY,
endX, endY
) {
console.log('start', arguments);
},
onmove: function (cx, cy, dx, dy, ex, ey) {
console.log('move', arguments);
},
onend: function (cx, cy, dx, dy, ex, ey) {
console.log('end', arguments);
},
oncancel: function (cx, cy, dx, dy, ex, ey) {
console.log('cancel', arguments);
}
});

// check the log
sk.init(0, 0, 10, 10, true, false);
``