allow between to be an array of strings
remove debug statement
test case to proof that less between strings also work and do not error
Add first batch of skeleton classes for new Http client.
Start adding FormData code + tests.
Add basic file support for FormData.

I have to double check the requirements around other
headers like Content-Type and Content-Transfer-Type.
Implement the rest of file support.
Add stubs/incomplete code for Request/Response.
Add incomplete send() method to Adapter.
Start implementing request building.

* Add highlevel tests for GET.
* Add tests for url building.
Start adding tests for Request.
Set headers if available.
Implement Request::header()
Implement more parts of the Request class.
Add Request::cookie()
Add tests for building requests with headers/cookies.
Starting to build out Stream adapter.
Fixes corrupted CakeRequests when a $_GET value contains "://"
Added unittest for REQUEST_URI with multiple FQDNs.
Add FormData::addMany()

This makes integration with the client simpler.