Bugfixes - 5.1 build 486 Change log

There was a pretty major regression bug in the last update that broke network page for anyone using a locale, so here is a bugfix release.
I decided to bash some other bugs while at it.

Change log
Locale

• Fixed a bug with network page not opening when locale was in use

Extensions

• Fixed BuyCraft Extension not registering
• Set BuyCraft Request header and URL to use Tebex instead of Buycraft
• Fixed extra plugin tabs not appearing on /server and /network pages if there were no other kinds of data
• Fixed ${backButton} appearing on extension tabs instead of the button
• Fixed ViaVersion Extension registering its listeners even when disabled

Exceptions

• Fixed an SQL exception on join (plan_users Duplicate entry) on networks
• Fixed an IllegalArgumentException related to network page export and ExportPaths