Spinner location is wrong after updating last version of spin.js

[jaimeimarin]

In order to display the spinner at center you must set '50%' to the 'top' and 'left' properties.

return new Spinner({
        color: spinnerColor || "#fff",
        lines: lines,
        radius: radius,
        length: length,
        width: width,
        zIndex: "auto",
        top: "50%",
        left: "50%",
        className: ""
    });

By default the value is in 'auto' and the spinner is showing bad