cmd/browser: add startup flow that includes user signup

This change adds a signup process to the browser.

If a user starts the browser with a -config that doesn't exist, they
will be presented with a series of dialogs to sign up an Upsipn user.

On the server side, this change moves the task of loading a Config into
a "startup" method, meaning that the Config is not loaded until the user
points their web browser at the browser front end.

Part of addressing upspin/upspin#411

Change-Id: Ia94d691bef837185e6fed047d57dfd4a11fd102b
Reviewed-on: https://upspin-review.googlesource.com/11401
Reviewed-by: Rob Pike <r@golang.org>
4 files changed
tree: d8eeeeb1dfbb94fc8c714dee67f62b390ca96f3e
  1. .travis.yml
  2. AUTHORS
  3. CONDUCT.md
  4. CONTRIBUTING.md
  5. CONTRIBUTORS
  6. LICENSE
  7. PATENTS
  8. README.md
  9. client/
  10. cmd/
  11. codereview.cfg
  12. filesystem/
README.md

Upspin exp repository

This repository contains components that are experimental or under development.

See the master repository for more information.