SecuPress Pro 2.2.3

* Improvement#909: add hook in secupress_update_https_detection_errors
* Improvement#910: Constant SECUPRESS_ALLOW_LOGIN_ACCESS will also work for our Captcha
* Improvement#914: fr_BE & fr_CA = fr_FR
* Fix#913: user_can can lead to fatal error (see #52076 (Checking anonymous user's exist capability returns inconsistent results across functions.) – WordPress Trac)
* Fix: undefined functions (free version only)
* Fix: Captcha save button was not available (free version only)
* Fix: role was not translated in the alerts

* Improvement: Add Jetpack SSO as supported 2FA
* Improvement: Add a few forbidden names in "bad login IDs" module
* Fix: Emails for PasswordLess were not sent or sent in spam. (WP 5.7.1 will also fix this)
* Fix: Export Mode not read correctly
* Fix: 3 undefined index PHP warning
* Fix: 2 possible PHP fatal error (but won't break the front site)
* Fix: Move Login with WP running in a subdir was broken since 2.0

* New#905: Expert Mode has been added as a simple checkbox (but already available since 1.4.6 – 9 august 2018 ;p so, "new" feature)
* Improvement#885: Extend allowed request methods
* Improvement#893: Test if file exists be fore being tagged as PHP404 to prevent false positives
* Improvement#894: Better HTTPS tests
* Improvement#896: Emails from SecuPress will now come from the admin email address instead of noreply@ (the WP filter hook wp_mail_from is still usable)
* Improvement#901: New way to propose deactivation on incompatible plugins + force deactivation on plugins that directly enters in conflict
* Improvement#906: ?wp_lang param was not usable on moved login pages
* Fix#897: A Grade was not accessible even with all the tests OK
* Fix#898: WordPress Site Health page is back!
* Fix#900: Undefined Index on step4
* Fix#902: Update WP_Background_Process Lib
* Fix#904: Locked Default Role was not deactivable
* Fix#903: Database Prefix Rename feature didn't renamed the checked tables
* Fix#907: Alerts Emails contains HTML tags