- slightly cleaning the tests

core/Config.php

piwik.php

tests/core/ArchiveProcessing/Day.test.php

tests/core/Config.test.php

tests/core/DataTable/Renderer.test.php

tests/core/Date.test.php

tests/core/PHP_Related.test.php

tests/core/Piwik.test.php

tests/core/ReleaseCheckList.test.php

tests/core/TablePartitioning.test.php

tests/core/Tracker_Db.test.php

tests/core/Updater.test.php

tests/core/Url.test.php

tests/core/UserCountry.test.php

tests/core/blank.test.php

tests/core/piwik.php.test.php

tests/resources/Updater/core/0.3.php

tests/resources/Updater/testpluginUpdates/0.0.1.php

tests/resources/Updater/testpluginUpdates/0.1.php

tests/resources/Updater/testpluginUpdates/0.1beta2.php