mikekunze/bang.js — Issue #8: Update user.timestamp 
Author: mikekunze
Created: 2012-01-10 22:28:13+00:00
State: open

Determine when
- on socket heartbeat (event unknown, watching google groups for this)
- custom client side poller to freshen up server's user.handshake and user.timestamp

If socket heartbeat is not available, then use a client side poller (Ext.Direct poller) to freshen up the timestamp. While we're at it, use this opportunity to freshen up the handshake as well.

Note: last attempt at updating the handshake caused problems with Ext's forms, where the forms retained the old handshake once it was rendered. using the beforeAction event to update the form's params seemed to help.