delete all files

git-svn-id: https://plugins.svn.wordpress.org/yuzo-related-post/trunk@1017148 b8457f37-d9ea-0310-8a92-e5e31aec5664
add all options

git-svn-id: https://plugins.svn.wordpress.org/yuzo-related-post/trunk@1017149 b8457f37-d9ea-0310-8a92-e5e31aec5664
add all options

git-svn-id: https://plugins.svn.wordpress.org/yuzo-related-post/trunk@1017150 b8457f37-d9ea-0310-8a92-e5e31aec5664
add all options

git-svn-id: https://plugins.svn.wordpress.org/yuzo-related-post/trunk@1017151 b8457f37-d9ea-0310-8a92-e5e31aec5664