switched timeout to config flag

main.go

@@ -30,6 +30,7 @@ type Conf struct {
 	}
 	StationIP string `yaml:"station_ip"`
 	Password  string `yaml:"password"`
+	Timeout   string `yaml:"timeout"`
 }
 
 var (
@@ -184,8 +185,13 @@ func main() {
 		log.Fatalf("error creating jar")
 	}
 
+	timeout, err := time.ParseDuration(conf.Timeout)
+	if err != nil {
+		log.Fatalf("unable to parse duration %s: %v", conf.Timeout, err)
+	}
+
 	httpClient = &http.Client{
-		Timeout: time.Second * 30,
+		Timeout: timeout,
 		Jar:     cj,
 	}