Renamed MHD flags: do not print deprecation messages for some time.
Renamed MHD flags: do not print deprecation messages for some time.

ghaderer/libmicrohttpd,maru/libmicrohttpd-http2,maru/libmicrohttpd-http2,ghaderer/libmicrohttpd,ghaderer/libmicrohttpd,maru/libmicrohttpd-http2