Support for PicoLisp 20.6

Replace Travis-CI with GitHub Actions

Update CHANGELOG.md

Fix CHANGELOG.md

Add ciphers list to stunnel.conf and disable renegotiation

Generate random password on first-run

Update docs and changelog

Add bugfixes for endpoints with invalid responses. Fixes #38

Update module.l

Fix regression, read API docs from variable

Update jidoteki-admin dependency to 'v1.22.0'

Restore bootstrap.min.js

Ensure Travis builds from the master branch

Fix longstanding bug: stunnel starts regardless of the value of JIDO_WITH_SSL

Remove strapdown and google prettify deps