Fixed TcpSocket::set_descriptor(nullptr) causing an invalid read from address 0x0.
Improved HTTP response/request parsing so that they report a parse failure if the first few bytes of the HTTP request don't match the expected format rather than continuing to look for an end of header.
Fixed broken fr::Http::url_encode() implementation.
Optimised fr::Http::url_decode() implementation.
Added fr::Http unit tests.
Receiving an http request/response will now return errors like HttpHeaderTooBig, instead of the type being set to that.
Added fr::Socket::status_to_string for converting status values into English strings.