Bug 283442 [UI] Refactor the rendering class names
In order to bring the model closer to the way in which we talk about it we should re-factor it to remove references to 'factory'. For now the re-factoring will to replace 'PartRenderer' with 'PartRenderingEngine' and to replace '<xxx>Factory' with '<xxx>Renderer'. Post 0.9 we expect to change these again but this will make the initial story clearer.
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/workbench/ui/renderers/PartRenderer.java
installLifeCycleHooks(added);
						return;
					}
					
					
					if (added.getWidget() == null)
						
						createGui(added);
					else {
						factory.childAdded(changedPart, added);
					}
				} else if (msg.getEventType() == Notification.REMOVE) {
					Activator.trace(Policy.DEBUG_RENDERER, "Child Removed", null); 
					MPart removed = (MPart) msg.getOldValue();
					
					
					if (!removed.isVisible())
						return;
					factory.childRemoved(changedPart, removed);
				}
			}
		}
	};
	private final IContributionFactory contributionFactory;
	private final IEclipseContext context;
	public PartRenderer(IContributionFactory contributionFactory, IEclipseContext context) {
		this.contributionFactory = contributionFactory;
		this.context = context;
	}
	public void addPartFactory(PartFactory factory) {