letsencrypt chain select

[ondrejbima]

• default LE chain ISRG Root X1
• keep support old ruby
• support acme without ssl verify

[zealot128]

@beam Do you still use this Gem? Do you want to take over the Github + Rubygem.
I don't use it anymore (Using Caddy Server now instead of Nginx) so I am not an active user.

[ondrejbima]

Yes, we use this game. I have no problem with take over GH a Rubygems..

[zealot128]

@beam I've invited you as a "Collaborator" here in Github. I've tried to add you on Rubygems, but havn't had success using your email "ondra@bimovi.cz". Do you already have a Rubygems account? If so, what's your username here?

[ondrejbima]

My rubygems username is "Beam"

[zealot128]

@beam I've added you as a Collaborator to both Rubygems + this repository. You might merge your PR's and release a new version :) Good Luck.