Issue #2824827 by damiankloip, dawehner, Wim Leers, klausi: \Drupal\hal\Normalizer\ContentEntityNormalizer::denormalize() fails with fatal PHP error when bundles are missing from link relation types

(cherry picked from commit 35acba7a)

Issue #2824576 by Wim Leers: Delete old REST test coverage: (Read|Create|Update|Delete)Test, deprecate RESTTestBase

Issue #2737719 by Wim Leers, dawehner: EntityResource: Provide comprehensive test coverage: for every entity type, every format, every method

Revert "Issue #2737719 by Wim Leers, dawehner: EntityResource: Provide comprehensive test coverage: for every entity type, every format, every method"

This reverts commit c1667f37.

Issue #2737719 by Wim Leers, dawehner: EntityResource: Provide comprehensive test coverage: for every entity type, every format, every method

(cherry picked from commit feb3a4df)

(cherry picked from commit a7b67e7a)

Issue #2427637 by Mile23, keopx, naveenvalecha, marvin_B8: Remove usages of deprecated entity_get_bundles()

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

Issue #2716685 by Mile23: Part 2: Fix several errors in the 'Drupal.Commenting.DocComment' coding standard

Issue #2572307 by vprocessor, attiks, andriyun, alexpott, pfrenssen: Fix 'Generic.PHP.UpperCaseConstant' coding standard

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

Issue #2672600 by borisson_, arunkumark, Mile23: Replace deprecated usage of  entity_create('node') with a direct call to Node::create() in comment,datetime,editor,field,hal,system,taxonomy,views

Issue #2672604 by saurabh.tripathi.cs: Replace deprecated usage of entity_create('taxonomy_term') and entity_create('taxonomy_vocabulary') with a direct call to Term::create() and Vocabulary::create()

Issue #2304849 by Arla, clemens.tolboom, effulgentsia, kaa4ever: Stop excluding local ID and revision fields from HAL output

Issue #2669400 by jungle, dimaro, rakesh.gectcr, lluvigne, Mile23: Replace deprecated usages of entity_create('type') with a direct call to <EntityType>::create()

Issue #2664466 by dawehner, alexpott, kostyashupenko: url_alias table is only used by a core service but it depends on system install

Issue #2641588 by naveenvalecha, Mac_Weber, dimaro, heykarthikwithu: Replace deprecated usage of  entity_create('file') with a direct call to File::create()

Issue #2641604 by Mac_Weber, lluvigne, heykarthikwithu: Replace deprecated usage of  entity_create('node_type') with a direct call to NodeType::create()

Issue #2641584 by Mac_Weber, heykarthikwithu, legovaer: Replace deprecated usage of  entity_create('field_config') with a direct call to FieldConfig::create()

Issue #2641624 by heykarthikwithu, Mac_Weber, kostyashupenko: Replace deprecated usage of  entity_create('user') with a direct call to User::create()

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

Issue #2641586 by Mac_Weber, marvin_B8: Replace deprecated usage of  entity_create('field_storage_config') with a direct call to  FieldStorageConfig::create()

Issue #2571845 by drupal.ninja03, hussainweb, anil280988, snehi, jhodgdon, GoZ, stefan.r: Links to wikipedia/php.net should be part of the actual t() string so they can be localized

Issue #2607332 by r_sharma08, ashhishhh, snehi, pjonckiere, dawehner: Missing @return tag in getActiveHelp(), denormalize(), createBookNode()

(cherry picked from commit 0a97f790)

Issue #2502621 by Pravin Ajaaz, hussainweb, Peacog, jhodgdon, ivanjaros: Replace implement notes with inheritdoc tag

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 #2090983 by plach, Berdir, yched: ContentEntityInterface::getTranslation() should throw an exception when an invalid language is specified

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

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 #2529034 by penyaskito, vijaycs85, yched: Replace direct access to FieldConfigBase::default_value with methods

Issue #2349819 by amateescu, swentel, Leksat, larowlan, dawehner, Gábor Hojtsy, mpdonadio, benjy, jmuzz, yched, jibran, marthinal, dmsmidt: String field type doesn't consider empty string as empty value