Document the world-enter pregen, and that underscore hostnames now work New page for the world-enter pregen: what the screen shows, that Enter World Now does not cancel the run, and the rule that matters most -- a world that finishes is never pre-generated again, while leaving early continues next time and raising the radius re-arms it. Server-Settings gains the two keys as their own mod-only section, and the backchannel prose now says that a hostname with an underscore is accepted and resolved rather than silently rejected (mod_support #26).