Leverage browser caching has been added

git-svn-id: https://plugins.svn.wordpress.org/wp-fastest-cache/trunk@860889 b8457f37-d9ea-0310-8a92-e5e31aec5664
slash problem

git-svn-id: https://plugins.svn.wordpress.org/wp-fastest-cache/trunk@861040 b8457f37-d9ea-0310-8a92-e5e31aec5664
Leverage browser caching has been added

git-svn-id: https://plugins.svn.wordpress.org/wp-fastest-cache/trunk@862551 b8457f37-d9ea-0310-8a92-e5e31aec5664