Issue #1979468 by Wim Leers, nod_, pwolanin, longwave, thedavidmeister, jessebeach, larowlan | catch: .active from linkGenerator(), l() and theme_links() forces an upper limit of per-page caching for all content containing links.

Issue #2175017 by tim.plunkett, yched: FieldDefinition::create() doesn't populate default 'settings' for the field type.

Issue #2168333 by tim.plunkett, EclipseGc, yched, fago: Ensure custom EntityType controllers can be provided by modules.

Somehow this broke PHPUnit, so rolling back for now.

This reverts commit 91b465bd.

Issue #1862202 by plach, Berdir, katbailey, ParisLiakos, alexpott, chx, sun, larowlan, Gábor Hojtsy, cosmicdreams, vijaycs85, YesCT, penyaskito, andypost, Albert Volkman, joelpitett: Objectify the language system.

Issue #1987716 by pfrenssen, tim.plunkett, kgoel: Provide a FormTestBase class to allow PHPUnit form tests.

Issue #2166065 by alexpott, mtift: Replace config_install_default_config with ConfigInstaller service.

Issue #1823494 by Berdir, sun, Jānis Bebrītis: Field API assumes serial/integer entity IDs, but the entity system does not.

Issue #2098119 by beejeebus, alexpott, chx: Replace config context system with baked-in locale support and single-event based overrides.

Issue #2167469 by pwolanin: Test EntityViewControllerTest has the wrong descriptive text in getInfo().

Issue #2042739 by jhedstrom, bdone, dawehner, tim.plunkett: Convert system module's ControllerResolverTest to phpunit.

Issue #2149827 by Xano, Mile23: Windows-1250 character encoding not supported by PHP's mbstring extension.

Issue #2157703 by andypost: Deprecate comment_int_to_alphadecimal() & comment_alphadecimal_to_int() in favour of methods in Number component.

Revert "Issue #1979468 by Wim Leers, pwolanin, nod_, thedavidmeister, larowlan: .active from linkGenerator(), l() and theme_links() forces an upper limit of per-page caching for all content containing links."

This reverts commit 624296e7.

Issue #1979468 by Wim Leers, pwolanin, nod_, thedavidmeister, larowlan: .active from linkGenerator(), l() and theme_links() forces an upper limit of per-page caching for all content containing links.

Issue #2145881 by damiankloip, alexpott: Remove string casting from Crypt::hmacBase64(). Throw exceptions instead.

Issue #641734 by echoz, LewisNyman, davidtrainer, Cottser, falkendk, rteijeiro: Separate generic html elements' style into seven.base.css.

Issue #2068471 by dawehner, Crell, tim.plunkett, jibran, fubhy, larowlan: Normalize Controller/View-listener behavior with a Page object.

Issue #2005716 by tim.plunkett, msonnabaum, dawehner, alexpott, effulgentsia: Promote EntityType to a domain object.

Issue #2109035 by tim.plunkett, damiankloip, dawehner, chx: Make access checkers (much) easier to find.

Issue #2107531 by pwolanin, neclimdul, cilefen, dawehner, YesCT, tim.plunkett: Improve DX of local task YAML definitions.

Issue #2079857 by herom, mrsinguyen, martin107, simanjan, sandipmkhairnar: BackendChain::removeBin() is broken.

Issue #2005644 by Wim Leers, damiankloip, beejeebus, amateescu: Use client-side cache tags & caching to eliminate 1 HTTP requests/page for in-place editing metadata, introduce drupalSettings.user.permissionsHash.

Issue #2119237 by cosmicdreams, Crell, damiankloip: Use \Symfony\Component\Debug\Exception\FlattenException instead of \Symfony\Component\HttpKernel\Exception\FlattenException.

Issue #1874498 by tim.plunkett, dawehner, jibran, benjy: Provide and use API methods for retrieving base plugin and derivative names from block plugin IDs.

Issue #1912602 by dawehner, damiankloip, dagmar, tim.plunkett, bdone: Changing view access from 'Permission' to 'Role' causes AJAX error message re getRoles().

Revert "Issue #1912602 by dawehner, dagmar, tim.plunkett, bdone: Changing view access from 'Permission' to 'Role' causes AJAX error message re getRoles()."

This reverts commit 0f17b0ec.

Issue #1912602 by dawehner, dagmar, tim.plunkett, bdone: Changing view access from 'Permission' to 'Role' causes AJAX error message re getRoles().

Issue #1954892 by dawehner, David_Rothstein, tim.plunkett: Replace 'theme callback' and hook_custom_theme() with a clean theme negotiation system.