Getting the Zend coding standard into PHP_CodeSniffer

With the help of some sniffs contributed by Johann-Peter Hartmann, I've started creating a Zend coding standard for PHP_CodeSniffer, a commonly requested addition to the tool. This new standard implements the Zend Framework coding standards document and is currently available in CVS.

The standard is not yet complete, but it is on the way. I'll continue adding more sniffs as I get time. If you use the Zend coding standard and want to contribute, let me know.