WorldBorder

IMPORTANT NOTE: This version is only intended for Bukkit builds for Minecraft 1.8+, specifically Spigot.

1.8.3:

• Quick fix to remove "worldborder" command alias, which would replace vanilla /worldborder command.

from 1.8.2:

• Workaround fix for changes made to Bukkit's Server.getOnlinePlayers() method in Bukkit builds for MC 1.8+ that broke WorldBorder's border monitoring routine.
• New command /wb preventblockplace <on|off>, which when enabled, will prevent players from placing blocks outside the world's border. Defaults to off/disabled, as it can have a noticeable performance impact. Requires new permission "worldborder.preventblockplace". (by gipsy-king)

New command:
/wb preventblockplace <on|off> - stop block placement past border. Default off, as it can have a noticeable performance impact. Requires permission worldborder.preventblockplace.

Only tested on a snapshot build of Spigot 1.8 R0.1.