SecuPress Pro 2.2.3

* New Feature#736: Do not allow User Creation
* Fix#737: Blacklist IP didn't worked as expected, fixed now.
* Fix#733: Add a try/catch on shell_exec test to prevent fatal errors (seems that functions_exists is not enough oO)
* Improvement#734: Prevent the plugin to be tagged as malicious because of all the "bad words" contained in the code
* Nothing special for the 1.4.10 BUT the 1.5.0 will require PHP 5.6 and WordPress 4.9 (actually PHP 5.4 and WordPress 4.0)

Updated with PRE-Activated version. All pro features enabled

• Fix the “secupress_filter_scanner” PHP error, props Loic Martin