Commit some changes from Ed, also for USB, return different error for h/w comm error as opposed to where there is no error reported by windows, but the bytes did not get sent to the device (not responding)

<?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>