Merge pull request #11416 from owncloud/eventlogger

lib/base.php

lib/private/app.php

lib/private/db.php

lib/private/diagnostics/event.php

lib/private/diagnostics/eventlogger.php

lib/private/diagnostics/nulleventlogger.php

lib/private/diagnostics/nullquerylogger.php

lib/private/diagnostics/query.php

lib/private/diagnostics/querylogger.php

lib/private/route/router.php

lib/private/server.php

lib/private/util.php

lib/public/diagnostics/ievent.php

lib/public/diagnostics/ieventlogger.php

lib/public/diagnostics/iquery.php

lib/public/diagnostics/iquerylogger.php

lib/public/iservercontainer.php