secure debug message
Nonce
fix https://github.com/Neilpang/acme.sh/issues/627
support nginx mode
fix https://github.com/Neilpang/acme.sh/issues/488
support syslog
remove extra space
better hexdump
fix https://github.com/Neilpang/acme.sh/issues/595
remove extra space from help
exe mode
add note info if netcat-openbsd is required.
fix https://github.com/Neilpang/acme.sh/issues/578
support openssl 1.1.0
Dev