. Dashboards impl checkpoint

- beginnings of the dashboard configuration wizard (layouts)
  - icons for various layouts (a bit of Photoshop fun)
  - working layouts for single column, 2 column left and right narrow, three column
. Added "immediate" attribute to ActionLink component - same functionality as for standard JSF Command Button
. Fixed Wizard container.jsp to use "immediate=true" on Cancel button

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3355 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/bean/dashboard/DashboardWizard.java

@@ -64,7 +64,7 @@ public class DashboardWizard extends BaseWizardBean
     */
    protected String finishImpl(FacesContext context, String outcome) throws Exception
    {
-      return null;
+      return outcome;
    }
    
    /**