#11 Need more data for graphs

[Joseph]

The way we are doing things now we have a table with one entry per feed with columns num_delivered, and bandwidth. Each time Brandon updates the stats he just changes the values of the num_delivered and bandwidth columns. This approach only allows us to report the latest data, which is not useful for a graph. We really need to add a column with a timestamp or a unique identifier each time the distrib servers update the stats (basically a new row each time the distrib server updates) so that we can graph a history of stats.