Bug 217801 [CommonNavigator] Capability filtering of commonWizard extensions uses wrong identifier
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/wizards/CommonWizardDescriptor.java
* The content extension is enabled for the selection if and only if it is
	 * enabled for each element in the selection.
	 * 
	 * @param aStructuredSelection
	 *            The selection from the viewer
	 * @return True if and only if the extension is enabled for each element in
	 *         the selection.
	 */
	public boolean isEnabledFor(IStructuredSelection aStructuredSelection) {
		if (enablement == null) {
			return false;
		}
		IEvaluationContext context = null;
		Iterator elements = aStructuredSelection.iterator();
		while (elements.hasNext()) {
			context = new EvaluationContext(null, elements.next());
			context.setAllowPluginActivation(true);
			try {
				if (enablement.evaluate(context) == EvaluationResult.FALSE) {
					return false;
				}
			} catch (CoreException e) {
				NavigatorPlugin.log(IStatus.ERROR, 0, e.getMessage(), e);
				return false;
			}
		}
		return true;
	}
	/**
	 * Determine if this content extension is enabled for the given element.