Bug 325852 Add description attribute to MPartDescriptor/MPart
Adding this new attribute we could e.g. show additional informations about a Part in Show View-Dialog, ...
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ui/basic/impl/PartImpl.java
return;
			case BasicPackageImpl.PART__VARIABLES:
				getVariables().clear();
				getVariables().addAll((Collection<? extends String>)newValue);
				return;
			case BasicPackageImpl.PART__PROPERTIES:
				((EStructuralFeature.Setting)((EMap.InternalMapView<String, String>)getProperties()).eMap()).set(newValue);
				return;
			case BasicPackageImpl.PART__LABEL:
				setLabel((String)newValue);
				return;
			case BasicPackageImpl.PART__ICON_URI:
				setIconURI((String)newValue);
				return;
			case BasicPackageImpl.PART__TOOLTIP:
				setTooltip((String)newValue);
				return;
			case BasicPackageImpl.PART__LOCAL_LABEL:
				setLocalLabel((String)newValue);
				return;
			case BasicPackageImpl.PART__LOCAL_TOOLTIP:
				setLocalTooltip((String)newValue);
				return;
			case BasicPackageImpl.PART__LOCAL_IMAGE:
				setLocalImage(newValue);
				return;
			case BasicPackageImpl.PART__HANDLERS:
				getHandlers().clear();
				getHandlers().addAll((Collection<? extends MHandler>)newValue);
				return;