exp/cmd/demoserver: add example server that serves dynamic content

Demoserver serves an Upspin tree containing a series of boxes (files)
containing Schrödinger's cats. The cats inside the boxes are in the
superposition of dead and alive until a client does a Lookup of the box,
at which point the superposition collapses and the reality of the cat's
state is revealed.

The server implements all the read-only methods of DirServer and
StoreServer, including Watch.

Change-Id: Ic9fc571e3c7210041006eab4daa2ad679b1a5f46
Reviewed-on: https://upspin-review.googlesource.com/8683
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: David Presotto <presotto@gmail.com>
2 files changed
tree: f5a66c7290e7346c1a4649576906437ce4ab866a
  1. README.md
  2. client/
  3. cmd/
  4. dir/
  5. store/
README.md

Experimental components

This directory contains components that are experimental or under development.