Updates README.md
Updates image fullscreen mode
Updates elements overlapping in fullscreen
Update README.md
Adds slideshow speed control
Adds ACME EAB support
Adds '--acme-certpath' option
Adds support for ACME providers other than LE
Adds initial ACME support: Let's Encrypt
Updates demo video + http timeouts
Updates command-line options management
Adds initial TLS support
Updates UX for server offline/backOnline
Fix handling of HTTP shutdown, client disconnect
Adds slideshow
Updates logging