. 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@3354 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/config/DashboardsConfigElement.java

@@ -16,6 +16,7 @@
  */
 package org.alfresco.web.config;
 
+import java.util.Collection;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.List;
@@ -99,14 +100,14 @@ public class DashboardsConfigElement extends ConfigElementAdapter
       return this.dashletDefs.get(id);
    }
    
-   public Iterator getLayouts()
+   public Collection<LayoutDefinition> getLayouts()
    {
-      return this.layoutDefs.entrySet().iterator();
+      return this.layoutDefs.values();
    }
    
-   public Iterator getDashlets()
+   public Collection<DashletDefinition> getDashlets()
    {
-      return this.dashletDefs.entrySet().iterator();
+      return this.dashletDefs.values();
    }
    
    /**