Handle streaming contents

[phated]

I was reviewing a bunch of gulpfiles and many people do this (I know it's crazy but they do):

browserify.bundle()
  .pipe(vinylSourceStream())
  .pipe(vinylBuffer())
  .pipe(gulpSourcemaps.init())
  .pipe(gulpSourcemaps.write('./dist'))
  .pipe(gulp.dest('./dist'))

They seem to be buffering the contents just so they can write sourcemaps as individual files in the same directory as their output (as opposed to browserify's inline sourcemaps). If we support writing streaming sourcemaps in .dest(), they will only need vinylSourceStream() and can drop 3 steps (including buffering!!!) from their pipeline.