7ictor

function (doc, req) {
  var findTheChanges = function (prevK, obj) {
    var arr = [];
    for (var key in obj) {
      var prevKey = prevK || '';
      if (obj.hasOwnProperty(key)) {
        var value = obj[key];
        // If its an Object dig deeper.
        if (value !== null &&
            typeof value === 'object' &&