PDT无人维护？

Due to lack of a package maintainer for the Indigo release there will be no PHP (PDT) package.  If you would like to install PDT into your Eclipse installtion you can do so by using the Install New Software feature from the Help Menu and installing the PHP Development Tools (PDT) SDK Feature from the Eclipse Indigo Repo >> http://download.eclipse.org/releases/indigo
                                                                http://eclipse.org/downloads/php_package.php

到底怎么回事，我没看明白