refs# 4233 fix class names

tests/PHPUnit/Integration/Core/AccessTest.php

tests/PHPUnit/Integration/Core/ArchiveProcessingTest.php

tests/PHPUnit/Integration/Core/LogTest.php

tests/PHPUnit/Integration/Core/OptionTest.php

tests/PHPUnit/Integration/Core/PiwikTest.php

tests/PHPUnit/Integration/Core/Plugin/SettingsTest.php

tests/PHPUnit/Integration/Core/SqlTest.php

tests/PHPUnit/Integration/Core/Tracker/ActionTest.php

tests/PHPUnit/Integration/Core/Tracker/VisitTest.php

tests/PHPUnit/Integration/Core/UpdaterTest.php

tests/PHPUnit/Integration/Core/WidgetsListTest.php

tests/PHPUnit/Integration/Plugins/LoginTest.php

tests/PHPUnit/Integration/Plugins/MobileMessagingTest.php

tests/PHPUnit/Integration/Plugins/MultiSitesTest.php

tests/PHPUnit/Integration/Plugins/ScheduledReportsTest.php

tests/PHPUnit/Integration/Plugins/SegmentEditorTest.php

tests/PHPUnit/Integration/Plugins/SitesManagerTest.php

tests/PHPUnit/Integration/Plugins/UsersManagerTest.php