Merge pull request #6201 from piwik/4996_content_tracking

config/global.ini.php

core/Metrics.php

core/Plugin/Manager.php

core/Plugin/Report.php

core/Plugin/ViewDataTable.php

core/Tracker.php

core/Tracker/Action.php

core/Tracker/Request.php

core/Tracker/TableLogAction.php

core/Url.php

js/piwik.js

libs/PiwikTracker/PiwikTracker.php

misc/internal-docs/content-tracking.md

piwik.js

plugins/Actions/Archiver.php

plugins/Contents/API.php

plugins/Contents/Actions/ActionContent.php

plugins/Contents/Archiver.php

plugins/Contents/Columns/ContentInteraction.php

plugins/Contents/Columns/ContentName.php