Connecting for the first time - reconnect

- [ ] Bug exists Release Version 1.1.0 ( Master Branch)
- [ ] Bug exists in Snapshot Version 1.1.1-SNAPSHOT (Develop Branch)

According to James's comment over [here](https://github.com/eclipse/paho.mqtt.java/issues/9#issuecomment-197361273), this is not supported, but I need this functionality in our application. For example, on application startup, we didn't have network connection, but after 30 seconds or so, we established connection successfully so I want my client to connect automatically.

My question is - what would be best approach to accomplish this? What I tried so far is to try to reconnect if something goes wrong during `connect` method. And since we use RxJava I have scheduled execution of the same method which is responsible for client connection. It will be easier if I paste the code.

```
private void connect(String brokerUrl) {
try {

LOG.info("Connecting to the broker...");
mqttClient.connect(connectionOptions, "Connecting", new IMqttActionListener() {

@Override
public void onSuccess(IMqttToken asyncActionToken) {
LOG.info("Successfully conected to the broker.");
}

@Override
public void onFailure(IMqttToken asyncActionToken, Throwable exception) {
LOG.error("Failed to connect to broker. Trying to reconnect in {} milliseconds...", connectionRetryTimeout, exception);
// try to reconnect in few seconds
Schedulers.io().scheduleDirect(() -> connect(brokerUrl), connectionRetryTimeout, TimeUnit.MILLISECONDS);
}
});

} catch (MqttException e) {
LOG.error("Connection error.", e);
}
}
```
What happens like this is that, when network connection is available I manage to connect automatically, but second thread is created which continues to retry to connect to broker. Does anyone already implemented this, or do you have any other suggestions?