wip(frontend): small fixes suggested by @gloriarodriguez

- sort attributes
- remove default after delete the last restriction
- set last to true by default on new

issue UPC#916

public/js/ravada.js

@@ -375,6 +375,7 @@
               $scope.ldap_attribute = '';
               $scope.ldap_attribute_value = '';
               $scope.ldap_attribute_allowed=true;
+              $scope.ldap_attribute_last=true;
               $http.get('/list_ldap_access/'+$scope.showmachine.id).then(function(response) {
                   $scope.ldap_attributes_domain  = response.data.list;
                   $scope.ldap_attributes_default = response.data.default;

rvd_front.pl

@@ -651,7 +651,7 @@
     return $c->render(json => []) if !$user;
 
     $c->session(ldap_attributes_cn => $cn) if $user;
-    return $c->render(json => {attributes => [$user->attributes]});
+    return $c->render(json => {attributes => [sort $user->attributes]});
 };
 
 get '/count_ldap_entries/(#attribute)/(#value)' => sub {
@@ -726,6 +726,12 @@ ($c, $domain, $allowed)
 
     $domain->delete_ldap_access($c->stash('id_access'));
 
+    # delete default if it is the only one left
+    my @ldap_access = $domain->list_ldap_access();
+    if (scalar @ldap_access == 1 && $ldap_access[0]->{value} eq '*') {
+        $domain->delete_ldap_access($ldap_access[0]->{id});
+    }
+
     return $c->render(json => { ok => 1 });
 };