- refactored main.go to do everything which requires root *first*,
before dropping privs. this includes binding to finger and gopher
ports.
- added gopher support!
- fixed CGI handling
- new cgi-bin/private directory handling in gemini which requires
specific TLS client certs (can't do this in gopher, no TLS)
- sliderule version bump brings in lots of fixes on the sliderule side
A gemini server which drops privileges to the 'nobody' user, hosts files
including directory listings (index.gmi or a default listing), and runs
CGIs out of /cgi-bin/*.