[privacy] INSTALL: "MEDIUM"+ support OpenPGP
[privacy] mk/make-config.sh: support OPT_OPENPGP
[privacy] make.rc: add OPT_OPENPGP option, by default enabled
[privacy] Actually extend MIME parser for _SIGNED,_ENCRYPTED++..
FIXME [net-test.2] Adapt IMAP and POP3 manual for new config scheme
FIXME [net-test.2] mx-test.sh: adapt net_pop3 to TLS++, add OAUTHBEARER test
FIXME [-] mx.1: polish, IV (Ashton Fagg)
FIXME [-] Our address parser is as bad as i say since 2013 :-(, II..