Issue #2057401 by plach, socketwench, kfritsche, Damien Tournoud: Fixed Make the node entity database schema sensible.

Issue #2099467 by moshe weitzman, chx: Let non-interactive installers determine mode of files directory and its subdirectories.

Issue #2101661 by swentel: Fixed Update cache checking logic in core/includes/langauge.inc to use config system.

Issue #2089351 by thedavidmeister, meba: Convert all calls to check_plain() in core to Drupal\Component\Utility\String::checkPlain() in core/includes.

Issue #1829170 by LinL, socketwench, vijaycs85, mtift, LittleCoding, andypost, dawehner, ianmthomasuk: Convert the Maintenance Theme variable to settings.

Revert "Issue #2057401 by plach, socketwench, kfritsche: Fixed Make the node entity database schema sensible."

HEAD broken; rolling back temporarily.

This reverts commit c72f39ad.

Issue #2057401 by plach, socketwench, kfritsche: Fixed Make the node entity database schema sensible.

Issue #2049207 by dlu, blakehall, janstoeckler, ramlev, Moderate | Cottser: Replace .tpl.php with .html.twig in documentation.

Issue #1798732 by sun, Dean Reilly, mbrett5062, chx, westie, alexpott, juanolalla, Mark Carver, catch, jthorson, cam8001, Berdir: Convert install_task(), install_time() and install_current_batch() to use the state system.

Issue #2100329 by cosmicdreams: Use \Drupal instead of Drupal to make IDEs and static code analyse tools happy.

Issue #2002650 by mrsinguyen, chertzog, legolasbo, Erik Erskine, rhm50, sandergo90, grisendo, targoo, janstoeckler, maximpodorov, beowulf1416: Improve maintainability by removing unused local variables.

Issue #2077473 by dawehner, damiankloip, pwolanin: Replace local action plugin discovery with YamlDiscovery and handle routes with parameters.

This reverts commit 227f21b3.

Issue #2100753 by Berdir: Fixed route_parameters break lazy-save logic in MenuLinkStorageController::save().

Issue #2004244 by Berdir, plach, tim.plunkett, msonnabaum, das-peter: Move entity revision, content translation, validation and field methods to ContentEntityInterface.

Issue #1751194 by Cottser, mikl, effulgentsia, benjifisher: Introduce hook_theme_suggestions_HOOK() and hook_theme_suggestions_HOOK_alter().

Issue #1839318 by JohnAlbin, echoz: Added Replace drupal.base.css library with normalize.css for all themes.

Issue #1798738 by alexpott, mtift, tayzlor, ianmthomasuk, Albert Volkman, heyrocker, cam8001: Move css_js_query_string() to state system.

Issue #1953528 by swentel, Hydra: Store 'per-bundle view mode settings' in CMI, get rid of field_bundle_settings() & its variable.

Issue #2070651 by pwolanin, dawehner, larowlan, tim.plunkett, ParisLiakos: Introduce a path-based breadcrumb builder, remove the one that's based on {menu_links()}.

Issue #2088775 by tim.plunkett: Move entity.api.php to system module directory with other non-module api.php files

Issue #1969572 by neclimdul, larowlan, hussainweb, dawehner, damiankloip, ParisLiakos, pwieck, Berdir, socketwench: Make Uuid a service.

Issue #2058499 by mtift, BarisW: Added Combine Configuration Management menu items into one main menu item.

Issue #2055843 by dmoore: Fixed Installation fatal error: Cannot redeclare standard_form_install_configure_form_alter() in case-insensitive filesystems.

Issue #1605290 by amateescu, msonnabaum, Caseledde, damiankloip, beejeebus, catch, Berdir, Wim Leers: Enable entity render caching with cache tag support.

Issue #1793648 by nod_, kmox83, droplet, rteijeiro: Follow-up: replace all occurence of Drupal.settings with drupalSettings.

Issue #2045685 by amontero: Fixed Broken 'Visit your new site' link at install process finish page if web path contains '/core'.

Issue #1831846 by katbailey, maciej.zgadzaj, dawehner, RobLoach, moe4715, Hydra, larowlan, andypost: Fixed Help block is broken with language path prefixes.