update size thumbnail

git-svn-id: https://plugins.svn.wordpress.org/photos-box/trunk@1029079 b8457f37-d9ea-0310-8a92-e5e31aec5664
update notice

git-svn-id: https://plugins.svn.wordpress.org/photos-box/trunk@1029080 b8457f37-d9ea-0310-8a92-e5e31aec5664