This resolves some minor issues as well as a breaking update to Worldguard 6.x.

• Correctly remove f warps on unclaim.
• Fix message in kick command.
• Fix misleading error in kick command.
• Player lookup optimizations.
• Economy offline player fixes.
• Don't update prefixes for Wilderness.
• Change claim radius syntax to /f claim <radius> <faction>
• Update to Worldguard 6.x
• Change default chat tag insert to 0 to remove the annoying r.

Do not update to this if you are not using Worldguard 6.x and have the Worldguard hook enabled.

Radius claim syntax was changed to be more intuitive based on player feedback from multiple servers.