(cherry picked from commit a53da806)

(cherry picked from commit 437ebf7c)

Revert "Issue #2560795 by mikeryan, phenaproxima, penyaskito, willwh, benjy: Source plugins have a hidden dependency on migrate_drupal"

This reverts commit 89815ba3.

Issue #2560795 by mikeryan, phenaproxima, penyaskito, willwh, benjy: Source plugins have a hidden dependency on migrate_drupal

Issue #2471010 by pguillard, Arez, Oleksiy, ifrik, yoroy, andypost, alexpott, Bojhan, jbguerraz, brahmjeet789, jaimeguzman, drubb, DuaelFr, lrmeeske, Gábor Hojtsy: Label for Content and User bulk operations does not fit the action

Issue #2722621 by anoopjohn: Fix Drupal.Commenting.FunctionComment.InvalidReturn and Drupal.Commenting.FunctionComment.VoidReturn

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

Issue #2700661 by anoopjohn: Ensure core compliance to Drupal.Commenting.FunctionComment.ParamCommentIndentation (part 1).

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

Issue #2625696 by chx, benjy, alexpott, catch, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities

Revert "Issue #2625696 by chx, alexpott, benjy, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities"

This reverts commit 694994fe.

Issue #2625696 by chx, alexpott, benjy, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities

Issue #1811888 by bleen, Mile23, a_thakur, Nitesh Sethia, naveenvalecha: Add missing type hinting to Tracker module docblocks

Issue #2503411 by DuaelFr, Mac_Weber: Replace deprecated usage of entity_create('comment*') with a direct call to Comment/CommentType::create()

(cherry picked from commit 136b1d45)

Issue #2600666 by tim.plunkett: Route definitions using entity type paramconverters with serial IDs should add an integer requirement

Issue #2548195 by nod_, JohnAlbin, madhavvyas, sriharsha.uppuluri: Only use single quotes in JavaScript and update .eslintrc

Issue #2429191 by claudiu.cristea, amateescu, yched, nlisgo, Berdir, alexpott, klausi, Wim Leers, xjm, catch: Deprecate entity_reference.module and move its functionality to core

Issue #2493475 by ifrik, walangitan, XaviP, jhodgdon, batigolix: Fix online docs references in Help to conform to our standards

Issue #2568613 by alexpott, lauriii, pwolanin: Remove HTML support from date formats and replace remaining !placeholder where format_date() and 'date.formatter' => format() are used

Issue #2560783 by stefan.r, joelpittet, lauriii, Cottser, Sutharsan, kgoel, justAChris, Gábor Hojtsy, dawehner, jhodgdon, effulgentsia, xjm, andypost, googletorp: Replace !placeholder with :placeholder for URLs in hook_help() implementations

Issue #2543334 by Wim Leers, lauriii, Fabianx: Auto-placeholdering for #lazy_builder with bubbling of contexts and tags

Issue #2545972 by alexpott, joelpittet, ericjenkins, stefan.r, Wim Leers, Cottser: Remove all code usages SafeMarkup::checkPlain() and rely more on Twig autoescaping

Issue #2511516 by lauriii, Xano, Wim Leers, dawehner: Make local tasks and actions hooks provide cacheability metadata, to make the blocks showing them cacheable

Issue #2560641 by alexpott, lauriii, Xano, borisson_, ianthomas_uk, olli: Remove all usages SafeMarkup::checkPlain() from render arrays

Revert "Issue #2560641 by alexpott, lauriii, Xano, borisson_, ianthomas_uk: Remove all usages SafeMarkup::checkPlain() from render arrays"

This reverts commit 31007609.

Issue #2560641 by alexpott, lauriii, Xano, borisson_, ianthomas_uk: Remove all usages SafeMarkup::checkPlain() from render arrays

Issue #507488 by lauriii, mdrummond, Wim Leers, Manuel Garcia, pwolanin, davidhernandez, chx, jibran, andypost, dawehner, Xano, tuutti, Gábor Hojtsy, LewisNyman, maximiliam, eiriksm, borisson_, bill richardson, Fabianx, joelpittet, Jeff Burnz, xjm, webchick, Bojhan, EclipseGc, emma.maria, tim.plunkett: Convert page elements (local tasks, actions) into blocks

Issue #2554585 by Wim Leers, effulgentsia, moshe weitzman: Tracker responses are missing a cache tag and a cache context

Issue #2552013 by Wim Leers: Follow-up for #2481453: ensure the 'url.query_args': MainContentViewSubscriber::WRAPPER_FORMAT cache context is set

Issue #2550823 by phenaproxima, neclimdul: Migrate Drupal integration tests should load all dump files

Issue #2082315 by Wim Leers, realityloop, mrjmd: Tracker history markers ("new" and "updated" markers, "x new replies" links) forces render caching to be per user

Issue #2471232 by borisson_, JeroenT, sorressean, rbmboogie, ruha, mariancalinro: Optimize Cache::merge*(), by only accepting 2 instead of N arguments