Added argument to Phpunit plugin: config.  This takes the path to an xml configuration file which will be run instead of the specified directory.
Merge branch 'php-unit-xml-config'

Conflicts:
	PHPCI/Plugin/PhpUnit.php
Merge branch 'master' of https://github.com/Block8/PHPCI
Merge branch 'master' of https://github.com/Block8/PHPCI
Updated the comments in the PHPUnit plugin to relfect the fact that directory and config file can also be arrays of strings.
Merge pull request #30 from meadsteve/phpunit-comment-tweak

Phpunit comment tweak