Update for assign2 assignment server

We’re updating the hardware of our backup assignment server.  The switch over to the new hardware should occur today.  Note that this involves a DNS change and so we expect it may take some time for the DNS to propagate.  However, we will keep both servers up, so donors should not see any interruption in service.  However, if you do see something strange related to this backup AS, please report it in our forum (http://foldingforum.org).