Issue #2166863 by tim.plunkett, pwolanin: Add a formBuilder() method to ControllerBase.
Issue #2171315 by diarmy, tim.plunkett: Cleanup the container in UnitTestCase::tearDown.
Issue #2120589 by dawehner: Extend the ViewAjaxController tests.
Issue #2175517 by chx: Entity displays are themselves config entities.
Issue #2173653 by kay_v, scor: Update easyrdf/easyrdf to 0.8.0.
Issue #2170589 by damiankloip: Use addCollection() in routeBuilder if a RouteCollection is returned from a route_callback.
Issue #2178205 by InternetDevels: Delete obsolete config key active_plugins from search module.
Issue #2177971 by chr.fritsch, Berdir: Remove bundle_keys annotation and related methods.
Issue #2175869 by sun: Rename views.view.test_feed_display.yml for consistency.
Issue #2141539 by yched, JStanton, InternetDevels, blesss: Rename FieldItemListInterface::filterEmptyValues() to filterEmptyItems().
Issue #1831608 by smiletrl, penyaskito, swentel, jlbellido, vijaycs85, Gábor Hojtsy, piyuesh23, sun, YesCT | Lukas von Blarer: Show or hide the 'Make field translatable' checkbox on the add field form depending on translatability.
Issue #2028037 by marvin_B8, LinL, jsbalsera, ceng, Berdir: Expand FeedInterface with methods.
Issue #2093849 by angel.h, pfrenssen: Clean up MenuTest.
Issue #2169875 by yched: Remnant D7 code in NodeFormController needlessly skips submitForm() .
Issue #2170549 by Greg Boggs: Make CKEditor pass coding standards: two missing spaces.
Issue #2099599 by jantimon: Minor for-loop optimizations for base.js.
Issue #2150179 by swentel, larowlan: Delete confirm form for locked fields is hotlinkable.
Issue #2072995 by claudiu.cristea, yched: Change notice: Move FAPI callbacks for file/image widgets in classes.
Revert "Issue #2141539 by yched, JStanton, InternetDevels, blesss: Rename FieldItemListInterface::filterEmptyValues() to filterEmptyItems()."

Conflicts with a beta blocker; rolling back temporarily.

This reverts commit dc4327ba1d234903722b598358dcc53889efb8a2.
Revert "Issue #2175517 by chx: Entity displays are themselves config entities."

Needs more discussion.

This reverts commit 129cd90f61bbd7793f08fbd5fee914d4b792c59a.