Monitor support

Signed-off-by: Madhu Venugopal <madhu@socketplane.io>
Added Echo processing

Signed-off-by: Madhu Venugopal <madhu@socketplane.io>
Added Async Update processing.

Signed-off-by: Madhu Venugopal <madhu@socketplane.io>
Merge pull request #25 from mavenugo/monitor

Monitor Request & Async Update, Echo support