[Issue #7] - Added config.go setting to allow setting the hostname

config.go.example

@@ -9,6 +9,7 @@ const (
 	WifiPass = "SecretWifiPassword"
 
 	// Networking settings
+	Hostname = "pico2w-bme280"
 	EnableICMP = true
 
 	MQTTHost = "192.168.1.50" // Must be an IP address; DNS resolution is not supported currently

network.go

@@ -115,7 +115,7 @@ func InitNetwork(ssid, pass string) (*NetworkStack, error) {
 
 	stack := &xnet.StackAsync{}
 	err = stack.Reset(xnet.StackConfig{
-		Hostname:          "pico2w-bme280",
+		Hostname:          Hostname,
 		RandSeed:          time.Now().UnixNano(),
 		MaxActiveTCPPorts: 2,
 		MTU:               uint16(framelen - ethernet.MaxOverheadSize),