Merge pull request #1063 from slingamn/history_registeredonly

fix #1061

irc/handlers.go

 			AccountName: accountName,
 			Tags:        tags,
 		}
-		if !item.IsStorable() {
+		if !item.IsStorable() || !allowedPlusR {
 			return
 		}
 		targetedItem := item