Make IP and hostname optional when configuring the group for the self service page.

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/branches/2.8@16746 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-UI/js/configure/service.js

@@ -955,7 +955,7 @@ function groupDialog() {
                                 
                 // Check that group attributes are provided before continuing
                 var ready = 1;
-                var inputs = new Array(group, ip, hostnames);
+                var inputs = new Array(group);
                 for (var i in inputs) {
                     if (!inputs[i].val()) {
                         inputs[i].css('border-color', 'red');