string_decoder module from Node core for browsers

 node-string-decoder provides a string_decoder module compatible with
 string_decoder module from Node.js core but adapted for
 browsers context.
 .
 Node.js string_decoder module provides an API for decoding Buffer objects
 into strings in a manner that preserves encoded multi-byte UTF-8 and
 UTF-16 characters.
 .
 Node.js is an event-based server-side JavaScript engine.