Emit close event on bundle stream with standalone

[tonistiigi]

Currently watchify does not work with standalone option because the bundle stream does not emit close event.

When this.queue(null) is called through emits end event but because the stream is also writable it does not get destroyed. Other way to fix it would be to set output.writable = false.

The test got a bit hacky because when bundle() is called before _ready event the bug does not appear because it gets wrapped into another through stream.

[ghost]

Published in 3.24.2. Thanks for the patch!

[tonistiigi]

I think you forgot to push to github.

$ curl -s https://raw.github.com/substack/node-browserify/master/package.json | json version
3.24.1
$ npm view browserify version
3.24.2