Compatability with Guardian module

Problem/Motivation

The Guardian module, guards account so that passwords cannot be edited in the interface. If simple pass reset is turned on, this is circumvented by requesting a new password for the guarded account.

Steps to reproduce

1. Turn on the Guardian module.
2. Request a password via "/user/password" for user 1
3. Click on the link in the e-mail to reset your password
4. Now you can change the password for user 1 and this should not be the case

Proposed resolution

Detect if the Guardian module is used and if you try to login with a guarded account follow the regular process to login and skip the simple pass reset functionality.