cmd/browser: add spinners on buttons during startup process

Some of the steps during startup take some time.
Display a spinner inside each button after the user clicks it,
so they have something to look at while they wait.

The JavaScript and CSS for this is part of the project Ladda.
See http://msurguy.github.io/ladda-bootstrap/ for more details.

Also move third-party JavaScript code into separate directories
accompanied by their respective licenses.

Change-Id: I42e39413e8ecbc82dd3247c6adf02bfdfc5e6cc1
Reviewed-on: https://upspin-review.googlesource.com/12360
Reviewed-by: Rob Pike <r@golang.org>
19 files changed
tree: cd9b6b17f30835e0599d023db6e566bb9ba0922f
  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.