title: need node.js module for mime multipart/related
body: <p>I'm looking for a node.js module that can generate and parse mime multipart/related http payloads. So far I've seen many modules focused on multipart/form-data so their api is very biased to handling fields etc. I need something more generic.</p>
  
  <p>As an example, I need to generate/parse payload which may consist of 5 jpeg files without any form part.</p>