change in talos time stamps (as of 8am PDT June 25th 2008)

This morning I pushed the fixes to bug 419487 (change buildbot & talos 
to use buildtime, not test-run time).  Now when finding regressions you 
can match the time reported to the graph server for a given test result 
to the build time of the browser being tested.  This should narrow 
regression ranges down significantly.

We currently have no plans to attempt to re-time stamp any data already 
reported (and there is some good evidence that it would not be 
possible).  So, if you are investigating something pre 8am PDT of June 
25th 2008 you'll have to resort to the range padding schemes already 
used (usually go back an extra couple of hours from a reported number).

alice.