shrpx_client_handler: Use std::unique_ptr for upstream_
shrpx_http_downstream_connection: Embed http_parser
shrpx_ssl.cc: Use std::unique_ptr for ssl_locks
shrxp_worker.cc: Use std::unique_ptr for ThreadEventReceiver
shrpx_https_upstream: Embed http_parser
shrpx_spdy_session: Use std::unique_ptr for proxy_htp_
shrpx_spdy_session.cc: Code cleanup
shrpx.cc: Code cleanup
shrpx_http_downstream_connection.cc: Code cleanup
nghttpx: Handle error from bufferevent_socket_new and event_base_new
shrpx_https_upstream.cc: Code cleanup
shrpx_downstream.cc: Utilize std::move