Releases for CAPTCHA After

This is a full rewrite of the module to make it compatible with Drupal 8+.

The module is now based on CaptchaPoint configuration entities and Drupal Flood service.

Two new thresholds have been implemented:
- Maximum number of invalid submits for a specific Host/IP
- Global maximum number of invalid submits

Form validation process in case of errors is now properly handled.

No migration path from 7.x-1.x have been implemented.

Issue #1254616 by Tezza, pivica: Correctly handle situation when captcha element
do not exist in form - captcha is skipped.
Issue #1564264 by pivica: Fixed PDO exception when uninstalling module.
Issue #1460864 by pivica: Remove LICENSE.txt from Git repository.

List of new features:

- Captcha after global thresholds can now be overiden per form.
- Disable some of captcha_after threshold check with empty or 0 threshold value.
- Replace session submit threshold with flood submit threshold. Storing submit count in session can be avoided by clearing cookies.

Do not forget to run update.php because this version introduce new table in database.

This version is compatible with captcha 6.x-2.4