Fixing some tests, make sure processed metrics are computed even if generic filters disabled, and do not apply queued filters in datatablemanipulators when fetching subtables.
Adding processed metrics for Actions plugin (removing queueFilter calls).
Converted most other processed metric calculation to use ProcessedMetric class.
Convert MultiSites/API to use processed metric instead of CalculateEvolutionFilter.
Use VisitsPercent processed metric in UserSettings.getPlugin.