Bug 320171 [Model] Use real Java-References in the Binding-Model-Elements
Currently they BindingTable is referencing a BindingContext using an ID. To me it looks like BindingTable is a child of BindingContext and then doesn't need the ID-Reference any more
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ui/basic/impl/WindowImpl.java
*/
	protected EList<String> bindingContexts;
	/**
	 * The cached value of the '{@link #getMainMenu() <em>Main Menu</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getMainMenu()
	 * @generated
	 * @ordered
	 */
	protected MMenu mainMenu;
	/**
	 * The default value of the '{@link #getX() <em>X</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getX()
	 * @generated
	 * @ordered
	 */
	protected static final int X_EDEFAULT = 0;
	/**
	 * The cached value of the '{@link #getX() <em>X</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getX()
	 * @generated
	 * @ordered
	 */
	protected int x = X_EDEFAULT;
	/**