Bukkit

Key:
+ = Addition
- = Removal
@ = Change
* = Bug fix
~ = New bug
# = Note

# support for CraftBukkit 1.3.1 RB

+ added /cannonall to cannon all online players
+ added /butcher command to kill nearby mobs

@ spawning items now work better, item names now spawn what you would expect them to
@ completely rewrote the /gm command
@ minor performance tweaks
@ all chat related functions now use Asynchonous Chat
@ added doubleslab to Material matching
@ added a config option to select whether to use a global spawn or a per world spawn
@ changed ticket link in /cex to github

* fixed experience setting, adding and taking for 1.3.1

# new perm cex.gamemode
# new perm cex.gamemode.others
# new perm cex.cannon.all
# new perm cex.butcher

# removed perm cex.gm.self

Command words (regexes matching against the chat which execute commands) run the commands before the chat message is broadcast, instead of afterward. The commands are still run in response to what you say in chat, it just doesn't seem like it...