Issue #2586887 by LittleCoding, Cottser, webchick, gambry, alexpott, joachim, joelpittet, lauri, xjm: Remove bogus theme config override example from default.settings.php

(cherry picked from commit 26d7911b)

Issue #3079029 by bircher, ricardoamaro, catch, wouter.adem, marcvangend, alexpott: Move module config exclusion from config_environment to core.services

Issue #3039026 by kim.pepper, Berdir, Peter Majmesku, vadim.hirbu, YurkinPark, andypost, dww, claudiu.cristea, alexpott, jibran, dawehner, mikelutz: Deprecate file_directory_temp() and move to FileSystem service

Issue #3035312 by kim.pepper, andypost, martin107, yogeshmpawar, naveenvalecha, pguillard, Berdir, dww, claudiu.cristea, jibran, Mile23: Move file_scan_directory() to file_system service

Issue #2980712 by bircher, alexpott, yogeshmpawar, mpotter, borisson_: Define config directory in settings

Issue #3024728 by amateescu, plach: Preserve the backup tables after an entity type schema conversion process

Issue #3030501 by alexpott, Gábor Hojtsy, Berdir: [Symfony 4] Drupal\Core\StackMiddleware\ReverseProxyMiddleware calls Symfony\Component\HttpFoundation\Request::setTrustedHeaderName() which does not exist

Issue #2975328 by alexpott, Gábor Hojtsy, borisson_: Install profile in settings.php and mismatch check makes re-installs of Drupal hard

Issue #2868078 by Manuel Garcia, claudiu.cristea, benjifisher, faline, gigiabba, ankitjain28may, mohit1604: Use new array syntax in PHP files outside of /core

Issue #2921706 by Daniel Korte, bkosborne: Update example.settings.local.php to include ['cache']['bins']['page']

Issue #2915673 by borisson_, alexpott, Gábor Hojtsy: Ignore coding standards in sites/* PHP files as they are for configuration and not real code

Issue #2805449 by joelpittet: Comment out 'extension_discovery_scan_tests' in example.settings.local.php

Issue #1286154 by mcdruid, cosmicdreams, das-peter, Cameron Tod, heddn, xjm, catch, tstoeckler, David_Rothstein, anavarre, tim.plunkett, naveenvalecha, dawehner: Allow custom default form cache expiration/lifetime

Issue #2662646 by chera.jaswinder, philnguyen, Munavijayalakshmi, daften, fago, memtkmcc, colan, benjifisher, cilefen, britter, dagmar, tomogden, catch, robertloo, xjm, osopolar, wesleydv, YesCT, jhodgdon, xlin, dhopki12: Add the temporary files directory config to the example config overrides in default.settings.php

Issue #2248983 by hchonov, amateescu, paranojik, timmillwood, tstoeckler, catch, Berdir, alexpott: Define the revision metadata base fields in the entity annotation in order for the storage to create them only in the revision table

Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable

Issue #2625212 by faline, cilefen, okay19, krishnan.n, snehi, tstoeckler, kostyashupenko, dawehner, alexpott, Wim Leers, cs_shadow: [rollback] Add ConfigSchemaChecker to development.services.yml

Revert "Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable"

This reverts commit 480eb82c.

Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable

Issue #2680379 by hchonov, mkalkbrenner, cilefen: services.yml and settings.local.php are not included if settings.php is a symlink

Issue #2625212 by faline, cilefen, okay19, krishnan.n, snehi, kostyashupenko, tstoeckler, dawehner, alexpott, Wim Leers, cs_shadow: Add ConfigSchemaChecker to development.services.yml

Issue #2827047 by faline, tstoeckler: Add http.response.debug_cacheability_headers: true to development.services.yml

Issue #2694391 by chx, dawehner, Yogesh Pawar, benjy, iMiksu, catch, alexpott, Fabianx: Separate cache bin for migrations

Issue #1869548 by dawehner, jeqq, dmouse, slasher13, damiankloip, alexpott, nod_, AlxVallejo, chr.fritsch, yanniboi, effulgentsia, dixon_, -enzo-, Wim Leers, Crell, andypost, catch, Damien Tournoud, kim.pepper, linclark: Opt-in CORS support

Issue #1920902 by neclimdul, larowlan, alexpott, chx, sun, jthorson, damiankloip, Berdir, Mixologic, YesCT, hussainweb, rcaracaus, cweagans, catch, jibran, msonnabaum, dawehner, webchick, anavarre, heyrocker: Add a Drupal Yaml wrapper so we can default to PECL Yaml component if it is available

Revert "Issue #1869548 by dawehner, jeqq, dmouse, damiankloip, nod_, AlxVallejo, chr.fritsch, yanniboi, effulgentsia, dixon_, -enzo-, Wim Leers, Crell, Damien Tournoud, andypost, kim.pepper, linclark, catch: Opt-in CORS support"

This reverts commit f2b71152.

Issue #1869548 by dawehner, jeqq, dmouse, damiankloip, nod_, AlxVallejo, chr.fritsch, yanniboi, effulgentsia, dixon_, -enzo-, Wim Leers, Crell, Damien Tournoud, andypost, kim.pepper, linclark, catch: Opt-in CORS support

Issue #2329453 by alexpott, joelpittet, hussainweb, kaidjohnson, andriyun, JohnAlbin, mirie, steveoliver, quicksketch, geerlingguy, RobLoach, jenlampton, SebCorbin, pablo.guerino, afoster, markcarver, danbohea, andypost, catch, donquixote, marcvangend, David_Rothstein, LewisNyman, neclimdul: Ignore front end vendor folders to improve directory search performance

SA-CORE-2016-003 by alexpott, Michael Dowling, mlhess, xjm, Pere Orga, dawehner, greggles, coltrane, pwolanin, larowlan

Issue #2699613 by alexpott, catch, Wim Leers, Berdir, dawehner, mpdonadio, borisson_, Fabianx: Set a shorter TTL for 404 responses in page_cache module

Issue #2536682 by eporama, r_sharma08, snehi, rakesh.gectcr, chegor, Prashant.c: default.settings.php database instructions need to be user friendly

Issue #1232572 by deviantintegral, joachim, cweagans, kenorb, bleen, webflo, ceng, Elijah Lynn, sriharsha.uppuluri: Add a variable to disable fixing file permissions in drupal_install_fix_file()

Issue #2637058 by claudiu.cristea, priya.chat, jhodgdon, dawehner: Fix HTTP proxy docs in default.settings.php

(cherry picked from commit 2ddd4bf6)

Issue #2580569 by anavarre, Davinder.Snehi, Schnitzel, jhodgdon: Update documentation that mentions active CMI directory. active was removed

Issue #2527126 by Wim Leers, dawehner, effulgentsia, anavarre, janusman, Fabianx, alexpott, hass, catch, Berdir, znerol: Only send X-Drupal-Cache-Tags and -Contexts headers when developer explicitly enables them

Issue #313145 by ghoti, t0xicCode, znerol, pwolanin, thedavidmeister, seanr, neclimdul, Damien Tournoud: Support X-Forwarded-* HTTP headers alternates