fix: mqtt default config (#382)

* fix: mqtt-tls in default config template

- panic: json: cannot unmarshal string into Go struct field
  Config.mqtt-tls of type bool

* fix: default mqtt port

- since MqttTLS is set to true by default we need to use the mqtts port
  as well.

  panic: network Error : EOF

Signed-off-by: Julian Strobl <jmastr@mailbox.org>

config/config.go

@@ -23,8 +23,7 @@ mqtt-domain = "{{ .PlmntConfig.MqttDomain }}"
 mqtt-port = {{ .PlmntConfig.MqttPort }}
 mqtt-user = "{{ .PlmntConfig.MqttUser }}"
 mqtt-password = "{{ .PlmntConfig.MqttPassword }}"
-mqtt-tls = "{{ .PlmntConfig.MqttTLS }}"
-
+mqtt-tls = {{ .PlmntConfig.MqttTLS }}
 `
 
 // Config defines Planetmint's top level configuration
@@ -62,7 +61,7 @@ func DefaultConfig() *Config {
 		RPCWallet:        "rpcwallet",
 		ValidatorAddress: "plmnt1w5dww335zhh98pzv783hqre355ck3u4w4hjxcx",
 		MqttDomain:       "testnet-mqtt.rddl.io",
-		MqttPort:         1885,
+		MqttPort:         1886,
 		MqttUser:         "user",
 		MqttPassword:     "password",
 		MqttTLS:          true,