Issue #2572613 by Malevi4, idebr, pfrenssen, Mile23, RajeevK: Fix 'Drupal.Array.Array.CommaLastItem' coding standard

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2520526 by alexpott, dawehner, pwolanin, nlisgo, Eli-T, claudiu.cristea, catch, cosmicdreams, Wim Leers, yched, jibran, Gábor Hojtsy, YesCT, swentel, heddn, xjm: Calculate configuration entity dependencies on install