Switch to a more reliable function for generation of userid
Move name of the localization cookie into a variable
Secure file paths (use dirname everywhere)
Update version
Restrict opening of files outside the Mibew installation
Sanitize mibewroot value
Secure database tables prefix
Improve verification and storing of the values of locale
Secure file paths (second part)
Secure an avatar's filename
Sanitize all redirects
Add new localization constant
Add missed checks for the failed file openings