• Adds a files mode to JWT, allowing to check ACLs only through a static-files-like interface.

Additions in this release:

• Cache jitter: a jitter can now be set for the cache to add randomness to expirations.
• Backends retry: retries on checks may be set to handle sporadic failures.
• Test Docker image.
• Backends registration: backends may register which checks they'll perform.
• General cleanup.

Major kudos to @PierreF for bringing in most of the enhancements.

Fixes some bugs in files backend:

• (Multiple)spaces within usernames/topics or multiple spaces between parameters were not being cacthed.
• Topics for non existing users were being assigned to the next user instead of ignored.
• deny permission for topics wasn't available.

Files backend now reloads password and ACL files on SIGHUP.

This release comes with:

• New Javascript backend, check README for details on how to use.
• Independent options for JWT local DBs so they may use different underlying DBs when a DB backend is also present.
• Javascript mode for JWT backend.
• Options to pre parse JWT token for local and JS modes.
• Options to skip JWT token expiration.
• Option to set DB backends connection tries before failing.

• Adds aarch64 support to the Docker build.
• Fixes typo in the Argon2ID hasher.

Fixes cache refresh typo.

Options were added to skip expiration in either user or acl basis.

Adds new jwt_skip_expiration option to allow not to check for a JWT token expiration.

• Fixes a bug where an ACL file mentioning a user not present in the passwords file would crash backend initialization.