This introduces a top level key: `hosts`. It's an array where you can
configure multiple hosts with their own requests, they share defaults
and environment with the global scope.
This allows you to have multiple paths being the same with different
endpoints and settings.
Defaults allow you to set default settings for all requests. You can
pass any configuration value and it'll be merged with any values the
request already has allowing you to write even less repetitive code.
Plugins can now be included, they can modify the requests before they
are made and modify the result. They are very simple to write and work
with. I also wrote and example plugin over at seich/beau-jwt.
David Diaz