Rename 'Non-Interactive Users' to 'Service Users'

The term 'Service Users' is more in-line with other
products while 'Non-Interactive Users' is a quite
unique and arcane name. Hence, this commit renames
the existing group.

This was discussued in this mailing list thread.

Change-Id: I5e62b0fe4cab455461920801486b0cc4abd377e7
diff --git a/Documentation/rest-api-projects.txt b/Documentation/rest-api-projects.txt
index ff022c5..92759b6 100644
--- a/Documentation/rest-api-projects.txt
+++ b/Documentation/rest-api-projects.txt
@@ -1153,7 +1153,7 @@
         "owner": "Administrators",
         "owner_id": "d5b7124af4de52924ed397913e2c3b37bf186948",
         "created_on": "2009-06-08 23:31:00.000000000",
-        "name": "Non-Interactive Users"
+        "name": "Service Users"
       },
       "global:Anonymous-Users": {
         "options": {},