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
`map->foreachinarea(buildin_recovery_TYPE_bl, map_id, x1, y1, x2, y2, BL_PC, revive);`