Delay unilateral exit and support send to onchain address (#117)

* add delay on redeem close + forfeit close

* increase default round lifetime (16 minutes min)

* add sequence to final pset

* update CLI and server to support delayed vtxos oncahin

* rename future to "locked"

* add configurable EXIT_DELAY variable

* renaming

* rename "close" --> "closure"

* rename "close" to "closure"

* error message config.go

client/receive.go

@@ -15,15 +15,9 @@ func receiveAction(ctx *cli.Context) error {
 	if err != nil {
 		return err
 	}
-	state, err := getState()
-	if err != nil {
-		return err
-	}
-	relays := []string{state["ark_url"]}
 
 	return printJSON(map[string]interface{}{
 		"offchain_address": offchainAddr,
 		"onchain_address":  onchainAddr,
-		"relays":           relays,
 	})
 }