Unreleased

Added

Implemented Eq for common::headers::Encoding, common::headers::MediaType, common::headers::Headers, common::HttpHeaderError, common::Body, common::Version, common::RequestError, request::Uri, request::RequestLine, response::StatusCode, response::ResponseHeaders
Allowed to set custom headers in HTTP responses.

Mark HttpServer::new_from_fd as unsafe as the correctness of the unsafe code in this method relies on an invariant the caller has to uphold
Always set 'Content-Length' in non-100/204 responses regardless of whether the body is empty. Otherwise, the client waits for the server to close the connection or for timeout to occur.