[WIP] Added option to turn off the password reminder and forced turn off if a third-party auth module is used, refs #900

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | --
| Fixed tickets | --
| Referenced tickets | #900
| License       | MIT
| Doc PR        | --

I will check if it really works with OpenID as soon as #899 and #883 are fixed.