v4.0.0

Bug Fixes

• fix sometimes encoded requests not ending properly (5d4d149)

BREAKING CHANGES

• close is no longer emitted from the miniget stream.
  emitting close on a stream alters its internal state, and will prevent
  it from properly finishing. this event was also a bit ambiguous in
  miniget since it would only be emitted once at the end, and not for each
  request. in comparsion, request and response can be emitted multiple
  times.