Add HTTP status code to OAuth exceptions thrown by OAuth::remote
Fixed natsort usage error in OAuth::normalize_params(), fixes #15
Fixed sending OAuth2 Requests with headers, fixes #16
Add support for non-GET/POST requests, fixes #17
Added OAuth_Request::$body and OAuth_Request::body(), fixes #18
Fixed incorrect calls to Request::url() in Controller_Demo_OAuth and Controller_Demo_OAuth2
Add referenced but undefined $api to demo controllers
Add Content-Length header to OAuth requests when a body is defined
Added OAuth2_Provider::execute(), to allow applying provider specific options to any request
Finished the MailChimp OAuth2 provider
Upgrade OAuth2_Request::as_header() to OAuth 2.0 v22
Remove overloading of the Authorization header, OAuth2_Request uses Bearer headers instead