Bug 306576 Externalization/translation of strings in xmi files
Currently our e4xmi files have various hard-coded English strings that are presented to the user (in particular the "label" attributes). Is there some mechanism already defined for externalization/translation of NLS strings from these xmi files? If not, we need to define one. Creating a new xmi file from scratch for each language won't scale, and won't allow switching languages after the product is installed.
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/application/ui/menu/impl/MenuPackageImpl.java
* <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.e4.ui.model.application.ui.menu.impl.RenderedToolBarImpl
		 * @see org.eclipse.e4.ui.model.application.ui.menu.impl.MenuPackageImpl#getRenderedToolBar()
		 * @generated
		 */
		public static final EClass RENDERED_TOOL_BAR = eINSTANCE.getRenderedToolBar();
		/**
		 * The meta object literal for the '<em><b>Contribution Manager</b></em>' attribute feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		public static final EAttribute RENDERED_TOOL_BAR__CONTRIBUTION_MANAGER = eINSTANCE.getRenderedToolBar_ContributionManager();
		/**
		 * The meta object literal for the '{@link org.eclipse.e4.ui.model.application.ui.menu.impl.ToolBarContributionImpl <em>Tool Bar Contribution</em>}' class.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @see org.eclipse.e4.ui.model.application.ui.menu.impl.ToolBarContributionImpl
		 * @see org.eclipse.e4.ui.model.application.ui.menu.impl.MenuPackageImpl#getToolBarContribution()
		 * @generated
		 */
		public static final EClass TOOL_BAR_CONTRIBUTION = eINSTANCE.getToolBarContribution();
		/**
		 * The meta object literal for the '<em><b>Parent Id</b></em>' attribute feature.
		 * <!-- begin-user-doc -->
		 * <!-- end-user-doc -->
		 * @generated
		 */
		public static final EAttribute TOOL_BAR_CONTRIBUTION__PARENT_ID = eINSTANCE.getToolBarContribution_ParentId();