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
This would be better as:

```
int buildin_recovery_sub(struct map_session_data *sd, int revive) {
    if (revive&1 && pc_isdead(sd)) {
        status->revive(&sd->bl,100,100);
        return 1;
    } else if (revive&2 && !pc_isdead(sd)) {
        status_percent_heal(&sd->bl,100,100);
        return 1;
        return true;
    }
    return 0;
}
```
Changed type to int, made it return the amount of revived/healed players (keep reading to see why I suggest this)