Updates galore

Got the third replica server up to 8.7.3.1, and things are happy. All three are now there, so every replica ring in the tree now has an 8.7.3.1 server in it. Woo!

Also set up the very first NW6.5 server in the tree! I needed to get it in there so I could check out the apache/mod_edir stuff. And it seems, as expected, the bug with mod_edir talking to clusters is still there. But now that I've proven the bug exists with NW65SP2 I should be able to register against the defect.