remove old PHP4 references, all functions are current in PHP > 5

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@329707 c90b9560-bf6c-de11-be94-00142212c4b1
Eliminate some spaces before versions

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@329708 c90b9560-bf6c-de11-be94-00142212c4b1