Added ability to keep password for premium players.
Added ability to use the SHA512 algorithm.
Added ability to show captcha codes in messages.
Added ability to show a message when a nickname is claimed by a premium player (only on the second join attempt).
Added ability to disable the authorization timer.
Added ability to disable the automatic unregistration feature.
Added fully random captcha codes generation.
Fixed issues with email sending.
Fixed issues with captcha maps.
Fixed issues with players redirection.
Improved some code.
Notice: Configurations files from older version will not work! Please generate new ones! Please install the new version on the BungeeCord and all Spigot servers!