Fixing most of the tests.

core/API/DataTableManipulator/ReportTotalsCalculator.php

core/API/DataTablePostProcessor.php

plugins/Actions/API.php

plugins/Actions/Reports/GetPageTitlesFollowingSiteSearch.php

plugins/CoreHome/Metrics/EvolutionMetric.php

plugins/MultiSites/API.php

plugins/VisitFrequency/Metrics/ReturningMetric.php

plugins/VisitorInterest/Metrics/VisitsPercent.php

tests/PHPUnit/System/ArchiveWebTest.php

...em/TwoVisitorsTwoWebsitesDifferentDaysConversionsTest.php

...xpected/test_FlattenReports__Actions.getPageUrls_week.xml

...tenReports_expandedSubtable__Actions.getPageUrls_week.xml

...enReports_expandedWithDepth__Actions.getPageUrls_week.xml

..._flatFilterPatternRecursive__Actions.getPageUrls_week.xml

...lattenReports_withAggregate__Actions.getPageUrls_week.xml

...tem/expected/test_ImportLogs__Actions.getPageUrls_day.xml

...it/System/expected/test_ImportLogs__Actions.get_month.xml

...__VisitorInterest.getNumberOfVisitsByVisitCount_range.xml

...ortLogs_withEnhancedAndLast7__MultiSites.getAll_month.xml

.../expected/test_LabelFilter_0__Actions.getPageUrls_day.xml