Adds a flash message when deleting a board (#24535).

Patch by Javier Menéndez.

git-svn-id: http://svn.redmine.org/redmine/trunk@16166 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/boards_controller.rb

@@ -102,7 +102,9 @@ class BoardsController < ApplicationController
   end
 
   def destroy
-    @board.destroy
+    if @board.destroy
+      flash[:notice] = l(:notice_successful_delete)
+    end
     redirect_to_settings_in_projects
   end