handling of duplicates

Hi - great little module, simple but more useful than the core IP Blocking feature outside the box.

I noticed today that Go Away will happily accept duplicate IPs. Not a big deal. If you realize this however and attempt to remove one of the duplicate then both go away, though I can understand why that's desirable. My preference would be not to accept duplicates, even if silently, as there is no point having duplicate entries right?

May I double up this post with a feature request, though it could be potentially a bug report depending on what is supposed to happened for IP ranges. I tried to input a partial IP and GoAway did accept it, but it did nothing at all, further probes from an IP within that range was not blocked. At least that's how it appeared to me.

Anyway, I think IP range support would be great without going too far. I realize that ultimately there are likely more comprehensive tools to fight spammers and trolls, but currently the modules availability for DP7 is thin on the ground and this could fill the gap in the meantime.

Keep up the good wok!