Dreaming of an `on_body` API for response streaming.
on_body is not marshallable.
Pass the on_body callback to the Ethon::Easy.
Loosen the requirement on response.body
Make the response available to on_body.
spelling.
Update with new ethon on_body callback API.
Make it easier to ignore the `response` arg to on_body callbacks.
Add an on_headers callback.
Add on_body to the README.
Add changelog entry.
Use the right ethon.

This is an attempt to make the travis build pass.
Avoid memoizing an incomplete easy.mirror.
Revise the readme section on streaming.
@on_headers is not marshallable.
Merge pull request #339 from spraints/stream

Add the ability to stream responses