Mark tasks done, add another one.

     end of a period.

   o Try to find out why some directories write empty geoip-stats files.

   o Add numbers about failed directory requests to the stats.

   . Gather statistics about download times and timeouts, so that we can

   o Gather statistics about download times and timeouts, so that we can

     infer the distribution of available bandwidth at clients.

   - Require DirReqStatistics config option, warn if DirPort is set to 0.

   o Require DirReqStatistics config option, warn if DirPort is set to 0.

   - Analyze directory requests by end of July which are running for about

     two months by then.

   - Figure out why estimations are that far off. Where is the flaw in the

*    Try to find a possible correlation between advertised bandwidth and

*    the time a relay spent in the network with the Guard flag. (see 4.5 in

*    performance roadmap)

   - Analyze 2004 and 2005 data, too.

 - Bridge archives

*  - July 31: Investigate bridge churn to determine how many bridges users