public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
		PlatformUI.getWorkbench().addWorkbenchListener(new IWorkbenchListener() {

			@Override
			public boolean preShutdown(IWorkbench workbench, boolean forced) {
				if (StopGruntTaskAction.p != null) 
					StopGruntTaskAction.p.destroy();
				return true;
			}

			@Override
			public void postShutdown(IWorkbench workbench) {
				// TODO Auto-generated method stub
				
			}
			
		});
	}