Fixed single model genxml pre-processing workaround to enable single system definition builds.
Added "tools" and "adaptation" to the list of packages to be prepended by sf where needed.
<?xml version="1.0"?>
<project name="SF-PACKAGE-REFS">
<path id="sf.spec.system.definition.files">
<fileset dir="${sf.spec.job.drive}/" casesensitive="false">
<include name="${sf.spec.systemdefinition.location}" />
</fileset>
</path>
</project>