Issue #3112295 by mondrake, Taran2L, acbramley, cliddell, mpdonadio, smustgrave, Hardik_Patel_12, AkashKumar07, ravi.shankar, alexpott, andypost, daffie, JeroenT, vladbo, pifagor, voleger: Replace REQUEST_TIME in rest of OO code (except for tests)

Issue #3113971 by Spokje, mondrake, acbramley, phenaproxima, andypost, murilohp, mpdonadio, ravi.shankar, pavnish, pifagor, vladbo, JeroenT, voleger, Taran2L: Replace REQUEST_TIME in services

Issue #2664322 by benjifisher, dawehner, daffie, almaudoh, mradcliffe, catch, quietone, alexpott, larowlan: key_value table is only used by a core service but it depends on system install

Issue #2854529 by alexpott, xjm, klausi, Chi, Mixologic: Fix Drupal.Scope.MethodScope - all methods should have scopes

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Revert "Issue #2664322 by dawehner, benjifisher, almaudoh: key_value table is only used by a core service but it depends on system install"

This reverts commit 5571193f.

Issue #2664322 by dawehner, benjifisher, almaudoh: key_value table is only used by a core service but it depends on system install

Issue #2719695 by alexpott, Mile23: Fix 'Drupal.Classes.ClassDeclaration.CloseBraceAfterBody' coding standard

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

Issue #1392754 by tss, justAChris, jhodgdon: Comply with new documentation standards for @file for namespaced class files

Issue #2182423 by Berdir, joelpittet: Key_value_expire doesn't get reset and balloons the PDO execution time for form pages.

Issue #1547008 by Berdir, Sutharsan: Replace Update's cache system with the (expirable) key value store.