- Made Response properly set statusMessage when status is set.
- Made Response/Request#json resolve with an empty object on a non-truthy body.
- Added a plethora of tests.
- Made include/exclude receive request/response parameters instead of url/config.
- Fixed a bug where a 200 status never could be returned from an include/exclude
- Fixed a bug where parameters were not passed on to the request constructor
- Implemented a better Headers init parser.
- Headers can now parse a Headers-instance, and two different Object-formats.