Bug 294739 [EAS] need service for reporting errors and warnings to the user (in a dialog, or through logging)
Rationale: Having them separated is quite risky, because it introduces artificial division, in which errors are handled. Probably UI plug-ins will use IStatusHandler and Logger, while core plug-ins will just log. How can we notify the user that something went completely wrong in headless plug-in? We need to create a bridge, so actually merge those two frameworks. On the other hand, why should we pass the same problem to IStatusHandler & to Logger? Are there any Statuses which should be shown to the user (and interrupt his work) but should not be logged?
bundles/org.eclipse.e4.ui.workbench.swt/src/org/eclipse/e4/ui/workbench/swt/internal/PartRenderingEngine.java
MUIElement parentME = element.getParent();
		if (parentME != null) {
			AbstractPartRenderer renderer = getRendererFor(parentME);
			if (renderer != null) {
				parent = renderer.getUIContainer(element);
			}
		}
		return createGui(element, parent);
	}
	/**
	 * @param element
	 */
	public void removeGui(MUIElement element) {
		AbstractPartRenderer renderer = getRendererFor(element);
		Assert.isNotNull(renderer);
		MUIElement parent = element.getParent();
		AbstractPartRenderer parentRenderer = parent != null ? getRendererFor(parent)
				: null;
		if (parentRenderer != null) {
			parentRenderer.hideChild(element.getParent(), element);
		}
		renderer.disposeWidget(element);
		
		if (element instanceof MContribution) {
			((MContribution) element).setObject(null);
		}
		
		if (element instanceof MContext) {
			MContext ctxt = (MContext) element;
			IEclipseContext lclContext = ctxt.getContext();