PauseStream

This is a Stream that will strictly buffer when paused.
Connect it to anything you need buffered.

  var ps = require('pause-stream')();

  badlyBehavedStream.pipe(ps.pause())

  aLittleLater(function (err, data) {
    ps.pipe(createAnotherStream(data))
    ps.resume()
  })

PauseStream will buffer whenever paused.
it will buffer when yau have called pause manually.
but also when it's downstream dest.write()===false.
it will attempt to drain the buffer when you call resume
or the downstream emits 'drain'

PauseStream is tested using stream-spec
and stream-tester

This is now the default case of
through

https://github.com/dominictarr/pause-stream/commit/4a6fe3dc2c11091b1efbfde912e0473719ed9cc0