Issue #1993728 by pfrenssen: Fixed testMenuTreeData() assert message confuses dashes and underscores.

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

Issue #2105583 by dawehner: Fixed phpunit strict mode basically kills debugging as you just have 1 second.

Issue #2104741 by Gábor Hojtsy: Fixed Quick fix: small tab inconsistencies + lack of tab conversion.

Issue #2095121 by clemens.tolboom, jibran: Ensure every path in routing.yml files has a leading slash.

Issue #2099095 by jibran, tim.plunkett: Create BreadcrumbBuilderBase and remove the boilerplate code from BreadcrumbBuilders.

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

Issue #2080703 by chertzog | mrsinguyen: Remove Unused local variable  from /core/modules/rdf/rdf.module.

Issue #1987390 follow-up by Tim Bozeman: Correct docblock comment in aggregator-summary-item.html.twig.

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

Issue #2061967 by Maxis, sergeypavlenko, m1r1k: Remove calls to deprecated global  in overlay module.

Issue #2062243 by chertzog, johnmcc, m1r1k: Remove calls to deprecated global  in core/modules/node/node.pages.inc.

Issue #2062117 by anpolimus, m1r1k: Remove calls to deprecated   = ['user'] in core/modules/node/lib/Drupal/node/Access/NodeRevisionAccessCheck.php .

Issue #2037569 by tstoeckler, ParisLaikos, wildflower_0002, pfrenssen, tim.plunkett: Remove design_test module.

Issue #1972990 by pwolanin, Dean Reilly, dawehner, Jberges, dokumori, AjitS, tim.plunkett: Convert tracker_page() to a Controller.

Issue #2057973 by aspilicious, Wim Leers: Don't add Edit module's data- attributes on pseudo fields (as used e.g. by Display Suite).

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

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

Issue #2103145 by tim.plunkett, damiankloip, neclimdul: Fixed ParameterConverter mangles raw values.

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.