code: function mixCopy(to, from)
  {
    var keys = Object.keys(from)
      , i    = keys.length
      ;
  
    while (i-- > 0)
    {
      to[keys[i]] = from[keys[i]];
    }
  
    return to;
  }
docs: Copies (shallow) own properties between provided objects
  
  @param   {object} to - source object to copy properties to
  @param   {object} from - source object to copy properties from
  @returns {object} – augmented `to` object