1.   // Retrieve existing thresholds
    2.   moment.relativeTimeThreshold('ss'); // 44
    3.   moment.relativeTimeThreshold('s');  // 45
    4.   moment.relativeTimeThreshold('m');  // 45
    5.   moment.relativeTimeThreshold('d');  // 26
    8.   // Set new thresholds
    9.   moment.relativeTimeThreshold('s', 40);
    10.   moment.relativeTimeThreshold('m', 40);
    11.   moment.relativeTimeThreshold('h', 20);
    12.   moment.relativeTimeThreshold('d', 25);