* fix: Two-Factor Auth
Moved library to a class to take advantage of namespacing and auto loading.
Update the two factor code to use the AuthenticationException for error messages.
Fix remember me to work with 2fa.
* missing change
* fix: move user preferences dashboard and twofactor out of users table
This allows them to work with any authentication method
Add set_user_pref() and get_user_pref() helper functions
* fix edit users for other users
* Fix updated_at default timestamp
* Update and rename 183.sql to 184.sql
* removed commented out debug
Tested against Google-Authenticator app on Android 4.4.4
Made `verify_hotp` more efficient.
Added autofocus on twofactor input
Added GUI Unlock and Remove for TwoFactor credentials in /edituser/
Allow additional tries after elapsed time from last try exceeds configured parameter `$config['twofactor_lock']`.
If `$config['twofactor_lock']` is not defined or is set to `0`, administrators have to unlock accounts that exceed 3 failures via GUI.
Added Documentation
Moved TwoFactor form to logon.inc.php
Disabled autocomplete on twofactor input field
Updated Docs to include link to Google-Authenticator's install-guides
Moved authentication logic from authenticate.inc.php to twofactor.lib.php
typo in docblock for `twofactor_auth()`
Fixed scrutinizer bugs
To please scrutinizer