v0.4.4

• Bug fix: Emit error event and close Stream when accessing the underlying
  stream resource fails with a permanent error.
  (#52 and #40 by @clue, #25 by @lysenkobv)
• Bug fix: Do not emit empty data event if nothing has been read (stream reached EOF)
  (#39 by @clue)
• Bug fix: Ignore empty writes to Buffer
  (#51 by @clue)
• Add benchmarking script to measure throughput in CI
  (#41 by @clue)