Add docs about current service class system, tiny util to make updates a

little easier than the standard config util

util/service_class

@@ -0,0 +1,34 @@
+#!/usr/bin/env php
+<?php
+
+// Temporary service class utility - see baseurl/help/service_classes
+
+require_once('include/cli_startup.php');
+
+cli_startup();
+
+if($argc > 3) {
+	$d = get_config('service_class', $argv[1]);
+	$d[$argv[2]] = $argv[3];
+	set_config('service_class', $argv[1], $d);
+	echo 'Updated service class "' . $argv[1] . '" service "' . $argv[2] . '" to ' . $argv[3] . "\n";
+}
+
+if($argc == 2) {
+	$d = get_config('service_class', $argv[1]);
+	echo $argv[1] . ":\n";
+	foreach($d as $k => $v) {
+		echo "$k = $v\n";
+	}
+}
+
+if($argc == 1) {
+	load_config('service_class');
+	foreach($a->config['service_class'] as $class=>$props) {
+		echo "$class:\n";
+		$d = unserialize($props);
+		foreach($d as $k => $v) {
+			echo "\t$k = $v\n";
+		}
+	}
+}