Refactor getBuiltInMacros() to be SBSv1 specific. This are the hard-coded macros misc macros we are adding for SBSv1. For SBSv2, they are retrieved from the sbs config query. Also, clean up some API and comments on public APIS

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>

<!--
 <copyright>
 </copyright>

 $Id: plugin.xml,v 1.1 2009/02/05 00:31:08 wpaul Exp $
-->

<plugin>
</plugin>