work to get EpocEngineHelper#getGlobalDefinesForConfiguration(ICarbideBuildConfiguration config, List<IPath> mmpFiles) working properly. Gets the configuration indexer data cache macros set up properly.

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.2"?>
<plugin>

   <extension-point id="featureUseTracker" name="Feature Usage Tracker" schema="schema/featureUseTracker.exsd"/>

</plugin>