Minecraft Premium User

Description
This is a plugin for MyBB which adds a page where user can "login" with their Minecraft account. The plugin checks if the user is premium and if they are, the group of the person changes to a "Minecraft" user.

Features
Auto creates "Minecraft" group
Uses language
The users who are in groups that is not avaliable for promotion can still add their minecraft account
Minecraft usernames are shown in postbit