replace new file

git-svn-id: https://plugins.svn.wordpress.org/display-opencart-category/trunk@867372 b8457f37-d9ea-0310-8a92-e5e31aec5664
update plugin demo site

git-svn-id: https://plugins.svn.wordpress.org/display-opencart-category/trunk@867373 b8457f37-d9ea-0310-8a92-e5e31aec5664