Add-ons XF2 [8WR] Member Utilities 2.2.0.1

• Removed further traces of the 2.1 username change system
• Big Thanks @alodda

• This release updates the addon to work with XenForo 2.2+.
• The username change features in this addon have been removed as XF2.2 now has it's own username change system and it pretty much works exactly the same as this addon. Leaving it in would lead to system clashes and errors. All other features remain intact.

NOTE: XF2.2 is still in beta at the time of this release.