Bug 87826 Need to improve image loading in Workbench
The Workbench image loading has several issues 1) The string "icons/full" is all over the place in the UI and should be made a constant 2) This needs to be prepended by /nl 3) The plugin descriptor is still in use to load images. This does not support nl which is required for BIDI support
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/navigator/ResourceNavigatorActionGroup.java
* @see WorkspaceActionGroup
 * 
 * @since 2.0
 */
public abstract class ResourceNavigatorActionGroup extends ActionGroup {
    /**
     * The resource navigator.
     */
    protected IResourceNavigator navigator;
    /**
     * Constructs a new navigator action group and creates its actions.
     * 
     * @param navigator the resource navigator
     */
    public ResourceNavigatorActionGroup(IResourceNavigator navigator) {
        this.navigator = navigator;
        makeActions();
    }
    /**
     * Returns the image descriptor with the given relative path.
     */
    protected ImageDescriptor getImageDescriptor(String relativePath) {
        String iconPath = "icons/full/"; 
        try {
            AbstractUIPlugin plugin = (AbstractUIPlugin) Platform
                    .getPlugin(PlatformUI.PLUGIN_ID);
            URL installURL = plugin.getDescriptor().getInstallURL();
            URL url = new URL(installURL, iconPath + relativePath);
            return ImageDescriptor.createFromURL(url);
        } catch (MalformedURLException e) {