Issue #1953404 by vijaycs85, yched, Gábor Hojtsy: Add config schema to field and instance config entities.

Issue #1807042 by tim.plunkett, effulgentsia: Rename entity storage/list/form/render controllers to handlers, part 1: organize existing annotation keys.

Issue #1905152 by Gábor Hojtsy, Jose Reyero, vijaycs85, YesCT, penyaskito: Integrate config schema with locale, so shipped configuration is translated.

Issue #1973324 by andypost, yched: Mark field_create_*(), field_update_*() and field_delete_*() deprecated in favor of just using the ConfigEntity API.

Issue #1712258 by alexpott, dagmar, Shuairan, disasm, slv_: Simplify image toolkit form logic, removing unneeded checks.

Issue #1167144 by chx, catch, claudiu.cristea: Make cache backends responsible for their own storage.

Issue #1973456 by echoz: Fixed .element-invisible on element at right causes horizontal scrollbar on desktop or right gap on phone on webkit browsers.

Issue #1416506 by Damien Tournoud, swentel, yched: Fixed Field schema foreign keys support is broken.

Issue #1787248 by Stalski, pcambra, webflo, Sweetchuck, jibran, zuuperman: Convert taxonomy module formatters to Plugin system.

Issue #1938932 by duellj, andypost, tim.plunkett: Remove taxonomy_overview_terms() and taxonomy_overview_vocabularies()  theme functions in favour of table #type.

Issue #1966998 by andypost, swentel: Add a constant OR use TRUE/FALSE for active storage vs. inactive storage and other properties.

Issue #1959306 by jessebeach: Drupal.announce does not handle multiple messages at the same time; Improve the utility so that simultaneously calls are read.

Issue #1877376 by damiankloip, dawehner, Bojhan: Change notice: Improve Views UI text for the contextual links display setting.

Issue #1974380 by rootatwc: Fixed Wrong inheritdocs in \Drupal\views\Plugin\views\style\Table and \Drupal\Core\Plugin\Factory\ContainerFactory.

Issue #1974628 by amateescu: Fixed Don't call t() on the field and widget label in FieldOverview::buildForm().

Issue #625958 by slashrsm, quicksketch, eojthebrave, droplet, danlinn, czigor: Support Uploading Multiple Files for HTML5 Browsers via #multiple attribute.

Issue #1955926 by quicksketch: Fixed CKEditor admin interface not touch-compatible (Add jQuery Touch Punch to core).

Issue #1913086 by jessebeach, Wim Leers, mgifford, nod_: Generalize the overlay tabbing management into a utility library.

Issue #1796316 by netsensei, swentel, jibran, zuuperman, amateescu: Convert Link/URL widgets / formatters to plugin system.

Issue #1946416 by kim.pepper: Convert all of confirm_form() in image.admin.inc to the new form interface.