plugins_loaded statt init für die Plugin-Initialisierung

git-svn-id: https://plugins.svn.wordpress.org/cachify/trunk@893633 b8457f37-d9ea-0310-8a92-e5e31aec5664
New plugin hook: cachify_remove_post_cache

git-svn-id: https://plugins.svn.wordpress.org/cachify/trunk@893635 b8457f37-d9ea-0310-8a92-e5e31aec5664