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/bookmarkexplorer/BookmarkNavigator.java
manager.add(new Separator());
        manager.add(editAction);
    }
    /* (non-Javadoc)
     * @see org.eclipse.core.runtime.IAdaptable#getAdapter(Class)
     */
    public Object getAdapter(Class adapter) {
        if (adapter == IShowInSource.class) {
            return new IShowInSource() {
                public ShowInContext getShowInContext() {
                    return new ShowInContext(null, getViewer().getSelection());
                }
            };
        }
        if (adapter == IShowInTargetList.class) {
            return new IShowInTargetList() {
                public String[] getShowInTargetIds() {
                    return new String[] { IPageLayout.ID_RES_NAV };
                }
            };
        }
        return super.getAdapter(adapter);
    }
    /**
     * Returns the image descriptor with the given relative path.
     */
    ImageDescriptor getImageDescriptor(String relativePath) {
        String iconPath = "icons/full/";
        try {
            URL installURL = getPlugin().getDescriptor().getInstallURL();