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
Add FreeDNS plugin support to acme.sh
Added support for Linode DNS API.
fix for solaris