Fixes https://github.com/simplesamlphp/simplesamlphp/issues/841

Cardinality: Add Afrikaans translations

This reverts commit ef36c5fd.

All a bit too involved right before a planned release.

This reverts commit a4dcf65a.

Also, convert to PSR-2 where that was still lacking in these files.

Enhancements to AttributeLimit to give additional control over allowed values

Show AuthData on authentication status page

It can be useful to see the AuthData when testing an authentication source.

Since the AuthData can be a hierarchy of data of various depths it is converted
into a pretty printed JSON structure.

Since the amount of AuthData can vary greatly, the data is displayed in side
a `<details>` element which requires clicking to view.

Ignore closure return types, as we need to support PHP < 7.

This is not really workable. Need to devise another way to run psalm
periodically without keeping it breaking the build.

See #860

Merge branch 'fix-idp-discohints' of https://github.com/m0ark/simplesamlphp into m0ark-fix-idp-discohints

Support both hint.cidr and DiscoHints->IPHint

Apache CGI support

Merge branch 'auth_source_factories' of https://github.com/unt01d/simplesamlphp into unt01d-auth_source_factories