Issue #2937513 by eltori, longwave, klausi, catch, idebr: Fix 'Drupal.Commenting.DocComment.TagGroupSpacing' coding standard

Issue #3047866 by mikelutz, Berdir, TR, alexpott, andypost, Satyanarayan Reddy: Remove usage of deprecated \Drupal::entityManager() in core

Issue #2603296 by heykarthikwithu: 'hook_shortcut_default_set' hook's docblock return can be improved

Issue #2435075 by dawehner: Implement admin role as a flag on the role storage, simplify permissions page, remove user_modules_installed

Issue #1975150 follow-up by David_Rothstein: Fix wrongly named return value in shortcut documentation.

Issue #1975150 by ACF: Remove variable_get() from mymodule_shortcut_admin_default_set() in the shortcut.api.php.

Issue #1496534 by cosmicdreams, alexpott, aspilicious, kim.pepper, acrollet, dagmar, beejeebus, wizonesolutions | heyrocker: Convert account settings to configuration system.

Nate Lampton authored Oct 30, 2011 and catch committed Nov 01, 2011

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

- Patch #511286 by JacobSingh, David_Rothstein, dmitrig01, Gábor Hojtsy, ksenzee et al: add customizable shortcuts to the toolbar.