Add support for qmake command provider extension. sets -spec when projects are created and when qmake is invoked on a .pro file
<?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>