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lib/utils.js
var result = {};
  function assignValue(val, key) {
    if (typeof result[key] === 'object' && typeof val === 'object') {
      result[key] = merge(result[key], val);
    } else {
      result[key] = val;
    }
  }
  for (var i = 0, l = arguments.length; i < l; i++) {
    forEach(arguments[i], assignValue);
  }
  return result;
}
/**
 * Function equal to merge with the difference being that no reference
 * to original objects is kept.
 *
 * @see merge
 * @param {Object} obj1 Object to merge
 * @returns {Object} Result of all merge properties
 */
function deepMerge() {
  var result = {};
  function assignValue(val, key) {