[Celo] Move to new mining pool api and lower peer connection backoff …

…time (ethereum#8)

Currently the two miners continuously drop and reconnect. By decreasing the backoff time we can thus decrease the block time.

abe/abe.go

@@ -77,7 +77,7 @@ func SendVerificationTexts(block *types.Block, coinbase common.Address, accountM
 
 			// Send the actual text message using our mining pool.
 			// TODO: Make mining pool be configurable via command line arguments.
-			url := "https://mining-pool.celo.org/send-text"
+			url := "https://mining-pool.celo.org/v0.1/sms"
 			values := map[string]string{"phoneNumber": phone, "message": secret}
 			jsonValue, _ := json.Marshal(values)
 			_, err = http.Post(url, "application/json", bytes.NewBuffer(jsonValue))

p2p/dial.go

@@ -32,7 +32,7 @@ import (
 const (
 	// This is the amount of time spent waiting in between
 	// redialing a certain node.
-	dialHistoryExpiration = 30 * time.Second
+	dialHistoryExpiration = 7 * time.Second
 
 	// Discovery lookups are throttled and can only run
 	// once every few seconds.