Add ResetAll() in topicaliases to prevent error on reconnection

[shirou]

Related: #271 and #276

This PR introduce ResetAll method in TAHandler. ResetAll should be called before reconnect. If not, topic alias is used after reconnect, and causes Protocol Error.

Here is a minimal sample code to use TAHandler with autopaho.

	maxTopicAlias := uint16(100)
	ta := topicaliases.NewTAHandler(maxTopicAlias)

	cliCfg := autopaho.ClientConfig{
		ServerUrls:                    []*url.URL{u},
		CleanStartOnInitialConnection: false,
		OnConnectionUp: func(cm *autopaho.ConnectionManager, connAck *paho.Connack) {
			ta.ResetAll()
		},
		ConnectPacketBuilder: func(c *paho.Connect, u *url.URL) (*paho.Connect, error) {
			c.Properties = &paho.ConnectProperties{
				TopicAliasMaximum: &maxTopicAlias,
			}
			return c, nil
		},
		ClientConfig: paho.ClientConfig{
			PublishHook: ta.PublishHook,
		},
	}