* Moved Responder stuff to LLHTTPClient. * Renamed LLHTTPClient::Responder to LLHTTPClient::ResponderWithResult. * Deleted LLHTTPClientAdapter and LLHTTPClientInterface. * Renamed AICurlInterface::TransferInfo to AITransferInfo and moved it to llhttpclient.h * Removed 'CURLcode code' argument from completed_headers.