Made the diff stat from inside the testfs, so new users/groups would stat correctly. Changed disco-ball fetch to fetch into the testfs, not into / (yikes!). New disco-ball command spin does what the main disco loop used to do for each module. Added the "users" disco ball to the standard library.

client/bin/disco-fs-init

@@ -1,6 +1,7 @@
 #!/bin/bash
 
 DISCOCFG=/etc/disco
+
 if [ "$NOOP" != "" ]; then
     DISCOROOT=/var/disco/testfs/noop
 else