[master]: Update the mirror site used, since peer1.net has been flakey recently.

Signed-off-by: Manoj Srivastava <srivasta@golden-gryphon.com>
[master]: no longer send a machine update to linuxcounter, since they bounce. Also, just use run-fetchmail to get mail.

Signed-off-by: Manoj Srivastava <srivasta@golden-gryphon.com>