CancelBuff

Adds the slash command /cancelbuff (/uncast and /unbuff also) so you can easily cancel a buff by its name with macros. Here's an example macro of something a priest/mage might want to use to give "super wings":

/cast Holy Candle
/wait 1
/cast Angel's Blessing
/wait 1
/uncast Holy Candle

Note: the names of buffs are case insensitive, so don't worry about capitalizing letters if you don't want to.