PHP Simple HTML DOM Parser v0.97 is released

1. Important!! file and class name changed (html_dom_parser->simple_html_dom)!
2. Important!! ($dom->save_file) will not support anymore.
3. New node type "comment" (eg. $dom->find('comment')).
4. Add self-closing tags: 'base', 'spacer'.
5. Fix the bug of outertext (th).
6. Fix the bug of regular expression escaping chars ($dom->find).
7. Fix the bug while line-breaker and "\t" in tags.
8. Remove example "example_customize_parser.php".
9. New example "simple_html_dom_utility.php".