New Gopher server

[Sean Conner <sean@conman.org>]

  I'd like to announce a new gopher server, port70.

	https://github.com/spc476/port70

  It's written in Lua and is easily extensible.  The features are:

	* Configurable filenames for Gopher index files.
	* A much nicer Gopher index file format native to this program.
	* Generates Gopher indexes for directories that lack a Gopher index file.
	* Support for user directories.
	* Support for URL: selectors.
	* Easily extensible with support for custom handlers.
	* IPv4/IPv6 support
	* Configuration via file.

  Comments and questions are welcome.  Thank you.

  -spc