New version (5.2.91)

git-svn-id: https://plugins.svn.wordpress.org/wp-special-textboxes/trunk@1007326 b8457f37-d9ea-0310-8a92-e5e31aec5664
Some final changes

git-svn-id: https://plugins.svn.wordpress.org/wp-special-textboxes/trunk@1007327 b8457f37-d9ea-0310-8a92-e5e31aec5664