Update version for PHP_Depend and Phing

Also correct the package name for Phing to phing, which is the name listed
on pear list -a. Otherwise, pear module will keep sending ensure notice.
Chnage PHPCS version to latest

As 1.4.6 has compatibilty issue with something else. Generating
Fatal error: Call to a member function printReport() on a non-object in /usr/share/pear/phing/tasks/ext/PhpCodeSnifferTask.php on line 495
Merge pull request #5 from ubc/master

Update version for PHP_Depend and Phing