Bug 316195 Improve "Show view" dialog
bundles/org.eclipse.e4.ui.workbench.swt/src/org/eclipse/e4/ui/internal/workbench/swt/E4Application.java
String xmiURI = getArgValue(E4Workbench.XMI_URI_ARG, applicationContext);
		appContext.set(E4Workbench.XMI_URI_ARG, xmiURI);
		String cssURI = getArgValue(E4Workbench.CSS_URI_ARG, applicationContext);
		appContext.set(E4Workbench.CSS_URI_ARG, cssURI);
		String cssResourcesURI = getArgValue(E4Workbench.CSS_RESOURCE_URI_ARG,
				applicationContext);
		appContext.set(E4Workbench.CSS_RESOURCE_URI_ARG, cssResourcesURI);
		
		String presentationURI = getArgValue(E4Workbench.PRESENTATION_URI_ARG,
				applicationContext);
		if (presentationURI == null) {
			presentationURI = PartRenderingEngine.engineURI;
		}
		appContext.set(E4Workbench.PRESENTATION_URI_ARG, presentationURI);
		
		
		E4Workbench workbench = new E4Workbench(appModel, appContext);
		return workbench;
	}
	private MApplication loadApplicationModel(IApplicationContext appContext,
			IEclipseContext eclipseContext) {
		MApplication theApp = null;
		Location instanceLocation = Activator.getDefault()
				.getInstanceLocation();
		String appModelPath = getArgValue(E4Workbench.XMI_URI_ARG, appContext);
		Assert.isNotNull(appModelPath, E4Workbench.XMI_URI_ARG
				+ " argument missing"); 
		final URI initialWorkbenchDefinitionInstance = URI