Flask-session-captcha

What's Changed
* Bump pillow from 10.2.0 to 10.3.0 by dependabot in https://github.com/Tethik/flask-session-captcha/pull/49

* Fix error thrown when flask-session-captcha is init-ed without a Flask app object.
* Rename CAPTCHA_LOG environment variable to CAPTCHA_DEBUG_LOG.

What's Changed
* Bump pillow from 9.1.0 to 9.1.1 by dependabot in https://github.com/Tethik/flask-session-captcha/pull/34
* Bump mistune from 0.8.4 to 2.0.3 in /sample/mariadb by dependabot in https://github.com/Tethik/flask-session-captcha/pull/35
* Bump setuptools from 62.3.2 to 65.5.1 by dependabot in https://github.com/Tethik/flask-session-captcha/pull/38
* Bump werkzeug from 2.1.1 to 2.3.8 by dependabot in https://github.com/Tethik/flask-session-captcha/pull/40
* Bump pillow from 9.3.0 to 10.0.1 by dependabot in https://github.com/Tethik/flask-session-captcha/pull/41
* Bump pillow from 9.3.0 to 10.2.0 by dependabot in https://github.com/Tethik/flask-session-captcha/pull/43
* Depend on markupsafe by mweinelt in https://github.com/Tethik/flask-session-captcha/pull/44
* adding ability for letter/numeric/punctuation captchas by alisharify7 in https://github.com/Tethik/flask-session-captcha/pull/46
* Migrated from flask-sessionstore to flask-session by alisharify7

New Contributors
* mweinelt made their first contribution in https://github.com/Tethik/flask-session-captcha/pull/44
* alisharify7 made their first contribution in https://github.com/Tethik/flask-session-captcha/pull/46

**Full Changelog**: https://github.com/Tethik/flask-session-captcha/compare/v1.3.0...v1.4.0

Add css_class support to captcha jinja global to optionally allow setting a css_class.

Example:

<form method="POST">
{{ captcha(css_class="captcha") }}
<input type="text" name="captcha">
<input type="submit">
</form>

Adds new `CAPTCHA_SESSION_KEY` option, allowing you to customize where in the flask session dictionary the captcha answer is stored. 29

Fixes an issue where `captcha.validate()` would return `None` instead of an expected `False` if no value is passed (e.g. due to an empty form). This would lead checks like `captcha.validate() == False` to fail.