Bug 76671 [BIDI] need a commmand line option for orientation
After consulation with Nick we have decided that we will add a command line option -orientation with one of two parameters = rtl or ltr. These values will override the implied values in IDEWorkbenchAdapter
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchAdvisor.java
* Updates the old features setting and returns a map of new features.
     */
    private Map createNewBundleGroupsMap() {
        	
        IDialogSettings settings = IDEWorkbenchPlugin.getDefault()
                .getDialogSettings();
        String[] previousFeaturesArray = settings.getArray(INSTALLED_FEATURES);
        
        Map bundleGroups = computeBundleGroupMap();
        String[] currentFeaturesArray = new String[bundleGroups.size()];
        bundleGroups.keySet().toArray(currentFeaturesArray);
        settings.put(INSTALLED_FEATURES, currentFeaturesArray);
        
        if (previousFeaturesArray != null)
            for (int i = 0; i < previousFeaturesArray.length; ++i)
                bundleGroups.remove(previousFeaturesArray[i]);
        return bundleGroups;
    }
    /*
     * Open a welcome editor for the given input
     */
    private void openWelcomeEditor(IWorkbenchWindow window,
            WelcomeEditorInput input, String perspectiveId) {
        if (getWorkbenchConfigurer().getWorkbench().getWorkbenchWindowCount() == 0) {
            
            
            return;
        }
        IWorkbenchWindow win = window;
        if (perspectiveId != null) {