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
label = newLabel;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, BasicPackageImpl.PART__LABEL, oldLabel, label));
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public String getIconURI() {
		return iconURI;
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setIconURI(String newIconURI) {
		String oldIconURI = iconURI;
		iconURI = newIconURI;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, BasicPackageImpl.PART__ICON_URI, oldIconURI, iconURI));
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public String getTooltip() {
		return tooltip;