Created by: Anatoliy Vladimirovich Demchenko
Authomatically adds titles to the_post_thumbnail function. Adds title attribute for img tag. There are two options: current post title (default) or attachment title (need set SHOW_POST_TITLE_AS_THUMBNAIL_TITLE to FALSE).
Basically, plugin adds post title to thumbnails.
For displaying attachment title find line
in wp-add-title-to-post-thumbnails.php
and replace it with