Standardize class filename

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@330304 c90b9560-bf6c-de11-be94-00142212c4b1
Move history to the changelog.


git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@330305 c90b9560-bf6c-de11-be94-00142212c4b1