Revert "Issue #2670966 by xjm, Crell, claudiu.cristea, alexpott, timmillwood, rakesh.gectcr, catch, dawehner, David_Rothstein, hchonov, martin107, tstoeckler, andypost, cilefen, RobLoach, Fabianx, salvis, hussainweb, JeroenT, larowlan, pfrenssen, daffie, webchick, wturrell: Warn users of old PHP versions"

This reverts commit 0a750b60.

Issue #2928433 by webchick, nod_, drpal, effulgentsia, justafish, lauriii: Add @justafish as JavaScript subsystem maintainer in MAINTAINERS.txt

(cherry picked from commit 4204b0b2)

Issue #2662574 by RajeevK, Adita, pritish.kumar, afi13, greyghost, tstoeckler, xjm, Cottser, dawehner: Theme suggestions may not be in theme include files, Search and Views UI suggestions are not (always) found

(cherry picked from commit d6fb4a50)

Revert "Issue #2662574 by RajeevK, Adita, pritish.kumar, afi13, AjitS, greyghost: Theme suggestions may not be in theme include files, Search and Views UI suggestions are not (always) found"

This reverts commit 275e5710.

Issue #2662574 by RajeevK, Adita, pritish.kumar, afi13, AjitS, greyghost: Theme suggestions may not be in theme include files, Search and Views UI suggestions are not (always) found

(cherry picked from commit 81d17351)

catch authored Oct 24, 2017 and Jess committed Dec 04, 2017

(cherry picked from commit 0f42cd05)

Issue #2850973 by alexpott, kferencz91, jonathan1055, catch, dawehner: ConfigEntityInterface::onDependencyRemoval() called with incorrect dependency list

(cherry picked from commit e382945b)

This reverts commit 9bcfe6d5.

Revert "Issue #2915820 by martin107, tim.plunkett, dawehner: [PHP 7.2] FormValidator: Parameter must be an array or an object that implements Countable"

This reverts commit 4ecce0bf.

Issue #2915820 by martin107, tim.plunkett, dawehner: [PHP 7.2] FormValidator: Parameter must be an array or an object that implements Countable

(cherry picked from commit c6d6c4d8)

Issue #2927476 by Lendude, tstoeckler: Using testing.services.yml in a kernelTest fatals when trying to copy this to the test site

(cherry picked from commit 148db4be)

Issue #2670966 by xjm, Crell, claudiu.cristea, alexpott, timmillwood, rakesh.gectcr, catch, dawehner, David_Rothstein, hchonov, martin107, tstoeckler, andypost, cilefen, RobLoach, Fabianx, salvis, hussainweb, JeroenT, larowlan, pfrenssen, daffie, webchick, wturrell: Warn users of old PHP versions

(cherry picked from commit 9f26cfb2)

Issue #2919872 by vaplas, dawehner: Move part of DownloadTest::testFileCreateUrl() to a new Kernel test

(cherry picked from commit 707740e0)

Issue #2641518 by dimaro, Mac_Weber, pk188, Mile23, anya_m, naveenvalecha, heykarthikwithu, aditya_anurag, nesta_, anchal29, rakesh.gectcr, sdstyles: Replace deprecated usage of  entity_create('config_test') with a direct call to ConfigTest::create()

(cherry picked from commit 71858600)

(cherry picked from commit dbfe03c0)

(cherry picked from commit 42634ef6)

Issue #2139467 by vaplas, Gábor Hojtsy, andypost, Sutharsan, alexpott, dillix: format_plural() does not handle D7 translations with a plural form after @count

(cherry picked from commit 3f49bda7)

Revert "Issue #2421001 by eiriksm, pfrenssen, YesCT, DuaelFr, gnuget, StryKaizer, Lendude, Jo Fitzgerald, andrewmacpherson, mgifford, geertvd, John Cook, mohit_aghera, Sinan Erdem, yoroy, thorandre, xjm, catch, joelpittet, idebr, alexpott, cilefen, dawehner, Cottser: Fix regression in the link widget where help text does not show"

This reverts commit ee5ad879.

Revert "Issue #2139467 by vaplas, Gábor Hojtsy, andypost, Sutharsan, alexpott, dillix: format_plural() does not handle D7 translations with a plural form after @count"

This reverts commit ac7a34df.

Issue #2139467 by vaplas, Gábor Hojtsy, andypost, Sutharsan, alexpott, dillix: format_plural() does not handle D7 translations with a plural form after @count

Issue #2421001 by eiriksm, pfrenssen, YesCT, DuaelFr, gnuget, StryKaizer, Lendude, Jo Fitzgerald, andrewmacpherson, mgifford, geertvd, John Cook, mohit_aghera, Sinan Erdem, yoroy, thorandre, xjm, catch, joelpittet, idebr, alexpott, cilefen, dawehner, Cottser: Fix regression in the link widget where help text does not show

(cherry picked from commit 9bcfe6d5)

(cherry picked from commit 7fb8c07f)

This reverts commit 17a2bdf6.

(cherry picked from commit a303c45e)

(cherry picked from commit 7ea6068f)

(cherry picked from commit 8e461b36)

Issue #2791405 by alexpott, Thew, flocondetoile, eyilmaz, bsnodgrass, cilefen, aralnoth, xjm, mikeohara, jaybee@baelemans.eu, szeidler, Gábor Hojtsy, catch, gagarine, vaplas, claudiu.cristea, ckaotik, idebr: When installing a site in a language besides English, the site name is not saved and reverts to "Drupal"

(cherry picked from commit dad79553)

Issue #2925913 by alexpott, amateescu: EntityReferenceItem logs critical errors in onDependencyRemoval()

(cherry picked from commit bddb0eab8b357683d8120e3d999a51392b229d2e)

Issue #2897936 by arunkumark, somepal, Chi, Cottser: check_markup() and FilterInterface refer to non-existent function filter_process_text()

(cherry picked from commit 3cf53f5f)

Issue #2920598 by Jo Fitzgerald, quietone: Move d6_taxonomy_term_translation and test to content_translation

Issue #2925550 by Berdir, amateescu: Fields with a manually defined initial value in the schema have an Entity schema definition mismatch after updating to Drupal 8.4

(cherry picked from commit 35161851)

Issue #2922343 by amateescu, dawehner: \Drupal\views\Tests\ViewResultAssertionTrait::assertIdenticalResultsetHelper() does not cast entity field values to strings

(cherry picked from commit 892c0f3c)

(cherry picked from commit 752fd5a7)

(cherry picked from commit 5d2b7fba)

Issue #2922371 by Mile23, dawehner, caseylau: Numerous deprecation messages for test traits do not reference the correct replacement

Issue #2923670 by duozersk, Saviktor, joachim: The one-line summary of ImageEffectInterface::getDerivativeExtension() is too long

(cherry picked from commit e59a03df)

(cherry picked from commit c53606ed)