improve and make nip77 api nicer so it could be better used in nak.

eventstore/cmd/eventstore/neg.go

@@ -43,7 +43,7 @@ var neg = &cli.Command{
 
 		// create negentropy object and initialize it with events
 		vec := vector.New()
-		neg := negentropy.New(vec, frameSizeLimit)
+		neg := negentropy.New(vec, frameSizeLimit, true, true)
 		for evt := range db.QueryEvents(filter, math.MaxInt) {
 			vec.Insert(evt.CreatedAt, evt.ID)
 		}