[ic] User tracking and stats

[David Walker]

I'm using a program called pglogd (http://www.digitalstratum.com/pglogd/) to 
log to a PostgreSQL database. Pglogd is a daemon that listens on a FIFO. 
Apache writes to the FIFO instead of the log files, this should improve 
Apache's performance as the standard log files must be locked while they are 
being written causing other apache processes to block. I have not tested this.

I'm working on analysis tools now. I want to graph how visitors move through 
my sites. That's much more useful information than how many visitors the site 
had yesterday.

David