fix error message in admin interface

added custom OTP form field

This also fixes wilminator/dokuwiki-plugin-twofactor#26

streamline language files

We use "two-factor" and "mechanism" as our preferred terms now.

changed how provider setup works

This makes the interface a bit cleaner and less confusing

some cleanup and streamlining for providers

removed obsolete config and language

finished admin refactoring

first start with the admin interface

profile localization and styling

* Reworked flow to better grant the 2FA to non-enabled users on the wiki access. This should prevent users from being hit up with a 2FA challenge just after enabling the software on the wiki or just

* Reworked flow to better grant the 2FA to non-enabled users on the wiki access. This should prevent users from being hit up with a 2FA challenge just after enabling the software on the wiki or just after configuring their first provider.
* Users with master disabled 2FA settings will no longer populate any available 2FA providers. These may be available if they were configured before turning off 2FA.
* Notices will now only send if the user truly wanted them, I think.

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* Added LogLog support to this module.
* Refactored workflow to eliminate redundant calls and provide cleaner logging.
* Rewrote the login function to (properly) use a cookie to survive a session pur

* Added LogLog support to this module.
* Refactored workflow to eliminate redundant calls and provide cleaner logging.
* Rewrote the login function to (properly) use a cookie to survive a session purge.
* The login cookie now has a server-side timeout setting.
* Added audit/debug logging. The audit logging will provide enough logging without LogLog to track user login activity. The debug logging will help me assist when others have problems.
* Removed trailing spaces.
* Added language internationalization for many options including email notification of successful login option.

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* Removed GetInfo from this module to fallback to base class method.
* Updated plugin.info.txt.
* Implemented a method-breaking change to _send_otp. The first argument is now the subject for the mes

* Removed GetInfo from this module to fallback to base class method.
* Updated plugin.info.txt.
* Implemented a method-breaking change to _send_otp. The first argument is now the subject for the message to be sent. This is used only if the transport supports it.
* Implemented login notification in _grant_clearance.
* Fixed session-loss fix so that when logging in via tokens (like with GA), the session id is properly recorded.
* Split out the message sending function of _send_otp into _send_message in action.php.
* Added new configuration options to the module to support the login notification and new message subject functionality.
* Rearranged the layout of the en/lang.php file.
* Removed the phone string from en/lang.php. This is being pushed back into the transport modules.
* Added setting translations for the new settings.
* Added per-item translations for the choice settings. This should further help with translations.

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* Added disable code to the admin module if the authentication module does not expose 'getUsers' functionality.
* Updated the language file to be more descriptive when disabling due to authentication

* Added disable code to the admin module if the authentication module does not expose 'getUsers' functionality.
* Updated the language file to be more descriptive when disabling due to authentication module issues.
* Updated the plugin release date files.

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* Corrected README to point to correct installation path
* Updated error messages regarding the lack of the Attribute plugin to be more clear that the plugin named Attribute is missing.
* Refactored

* Corrected README to point to correct installation path
* Updated error messages regarding the lack of the Attribute plugin to be more clear that the plugin named Attribute is missing.
* Refactored some code to accommodate for versions of PHP that do not let you index a function. This will help future debugging as needed.
* Changed how _send_otp used $modname. It now stores $modname as an array of class names that successfully sent the OTP out.
* Updated the default processLogin function to succeed if any OTP module processing the OTP is in the list of modules that succeeded in sending the OTP.
* Fixed the return value of _send_otp to refer to the correct variable to count.
* Updated the module release date.

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* Check to see if session is closed before opening and closing the session for _logout and _grant_clearance functions.
* Updated the publication information in preparation for posting to the internet

* Check to see if session is closed before opening and closing the session for _logout and _grant_clearance functions.
* Updated the publication information in preparation for posting to the internet.
* Fixed admin page to purge child attribute files.
* Fixed failure to pass user to exist check in _settingsGet.
* Fixed logic flaw identifying the module used to send OTP, effectively breaking that.
* Removed die statement to enable otp passwords.
* Updated image for Twofactor Settings.
* Refactored code to have new actions for twofactor_login and twofactor_profile. It is a bit cleaner now.
* Restructured twofactor_before_auth_check to do a better job of handling OTP acceptance (or lack thereof).

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* Pulled out debugging code I forgot to remove before releasing.
* Forgot to publish some language updates for new settings I added with the SMS verification.

* Adding initial twofactor plugin files.

Signed-off-by: Michael Wilmes <mwilmes@wilminator.com>