Update *recovery script command

another script command that rathena already having for months
http://trac.rathena.org/changeset/17321/rathena

no more atcommand @raise, @raisemap or @alive

feel free to improve the code
I'd rather have this return success and only affect the currently attached player (behaving as if it was a one-person party). Just a suggestion though, the implementation is up to you, as long as the documentation mentions this behavior.