Redirect users to dashboard index instead of rendering it.

We need access to the globals set by the index action.

app/controllers/dashboard_controller.rb

@@ -30,7 +30,7 @@ def update
     params[:concerto_config].each  do |k,v|
       ConcertoConfig.set(k,v) #only set this if the config already exists
     end
-    render :action => :index
+    redirect_to :action => :index
   end
 
   def run_backup