TODO:
- At the moment each user needs to configure a DUO application and input the API keys, we need to check if multiple users can register with the same keys correctly and if so we could implement a global setting.
- Sometimes the Duo frame doesn't load correctly, but canceling, reloading the page and logging in again seems to fix it for me.

Set default log level to Info, we don't use debug anyway and it just fills the logs with other crates info.

Fixed long e-mail message extending 1000 lines.

- Added quoted_printable crate to encode the e-mail messages.
- Change the way the e-mail gets build to use custom part headers.

Split up long line to stop SMTP from breaking

Reorganized the icons code a bit.

Return 404 instead of 400 when no accounts breached.

Trim spaces from admin token during authentication and validate that the admin panel token is not empty

Added newlines to config options to keep them a reasonable length.

Update vault to new version. No need to wait for a release when even the official web vault is already using it

Armv6

Minor typo fix conect => connect