[Xenfocus] Dimension 2.3.4

Upgraded for xenforo 2.3.x

Upgraded for Xenforo 2.2.13.
Fixed an error when trying to disable the Mega Footer in the admin panel.

Upgraded for Xenforo 2.2.12.
Fixed a Turkish language string in the guest message.
Added Brazilian Portuguese phrases.
The “Online statistics” widget on the “Current visitors” page is now using the correct icon.

for xenforo 2.2.9