add /tmp/ifcfg.log to anamon watch list

Bug: 1031999
Change-Id: I818475f9f9d11ccd1bfd741b5077e5f4a0100edd
allow overriding the URL for anamon

This will make it easier to test modifications of the anamon script in
various environments without affecting other users' jobs.

Change-Id: I694e3b0d33d8f79457f2dad36e1e89aaf8dffa74