add test case for Config.class.php:
1 testIsGitRevision
2 testCheckHTTP

per http://ci.phpmyadmin.net/job/phpMyAdmin/cloverphp/libraries_Config.class.php.html
It can increase a lot of code coverage
follow PMA coding style, add space after comma.
Merge pull request #256 from adamgsoc2013/UT_config2

add test case for Config.class.php: