* Add period TOPT config key to define the time in seconds each OTP is rotated
* Add skew TOTP config to define how many keys either side of the current one should be considered valid
* Add tests and set minimum values
* Update config template
* Use unix epoch for position calculation and Fix QR gen
* This resolves the timer resetting improperly at the 0 seconds mark and allows for periods longer than 1 minute
* Generate QR based on period
* Fix OTP timer graphic
When no rule is set to two_factor in ACL configuration, 2FA is
considered disabled. Therefore, when a user cannot be redirected
correctly because no target URL is provided or the URL is unsafe,
the user is either redirected to the default URL or to the
'already authenticated' view instead of the second factor view.
Fixes#683
Providing a GA tracking ID allows administrators to analyze
how the portal is used by their users in large environments,
i.e., with many users.
This will make even more sense when we have users and admins
management interfaces.
James Elliott
Amir Zarrinkafsh
Clement Michaud