Release Advance version 3.0.0-alpha.0.
Release Advance version 3.0.0-alpha.0.

title: Release Advance version 3.0.0-alpha.0.
label: release

 * Create new index file. Closes #66.
 * Convert reverse from class to function. See #66.
 * Convert forward from class to function. See #66.
 * Add chicklets and links to `README`. Closes #69.
 * Invoke Proof directly. See #69.
 * Update `.npmignore` and `.gitignore`. See #69.
 * Remove old test helpers. See #69.
 * Update `LICENSE` for 2020. Closes #71.
 * Build with only Node.js 12 on Travis CI. Closes #70.
 * Build with Actions, ship coverage to Codecov. Closes #67. Closes #68.
 * First pass of `async`/`await` conversion. See #66.
 * Update `LICENSE` for 2019.

Closes #72.

bigeasy/advance,bigeasy/advance