Revert "Issue #2225681 by quietone, Jo Fitzgerald, dipakmdhrm, Adita, maxocub, Gábor Hojtsy, phenaproxima, iMiksu, Manuel Garcia, catch: Migrate D6 i18n blocks translated strings"

This reverts commit b53e50d7.

Issue #2225681 by quietone, Jo Fitzgerald, dipakmdhrm, Adita, maxocub, Gábor Hojtsy, phenaproxima, iMiksu, Manuel Garcia, catch: Migrate D6 i18n blocks translated strings

Issue #2873696 by nvexler, wengerk, gido, Jo Fitzgerald, xjm: Add @internal to core classes, methods, properties to Form Classes

Issue #2901726 by mfernea, gmario, finn.lewis, robertoperuzzo, rachel_norfolk: Fix 'Squiz.Functions.MultiLineFunctionDeclaration' coding standard

Issue #2782833 by Mile23, martin107, larowlan, effulgentsia: Remove usages of deprecated EntityManager from Entity class

Issue #2825078 by Mile23, dawehner, Wim Leers, Gábor Hojtsy: Deprecate UnitTestCase dependency on block module

Issue #2572791 by Mile23, andriyun, attiks, RoSk0: Fix 'Drupal.WhiteSpace.OpenBracketSpacing' coding standard

Issue #2901739 by andriyun, Jo Fitzgerald, mfernea, xjm: Fix 'Squiz.Arrays.ArrayDeclaration' coding standard

Issue #2803621 by Mile23: Break BrowserTestBase & children dependency on Simpletest, deprecate stub BC traits

Issue #2805205 by andrewmacpherson, michielnugter, lauriekap, BarisW, pk188, Ehud, arunkumark, SteffenR, Lendude, droplet, alexpott, xiwar: Provide screen-reader feedback when filtering by block name

Issue #2352791 by prics, sam0971, naveenvalecha, Ashish.Dalvi, dstotijn, ZeiP, Mile23, tim.plunkett: Add test coverage for admin/structure/block/demo

Issue #2422229 by quietone, ultimike, vprocessor, anish.a, Jo Fitzgerald, phenaproxima: D6->D8 Core block migrations missing settings tests

Issue #2854529 by alexpott, xjm, klausi, Chi, Mixologic: Fix Drupal.Scope.MethodScope - all methods should have scopes

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2770921 by dawehner, klausi, Mile23, mpdonadio, xjm, claudiu.cristea: Feb 21st: Convert chunk of WTB to BTB by just moving classes, changing use statements adding traits

Issue #2287073 by Berdir, slashrsm, Denchev, jibran, Thew, dasjo, andypost, Arla, zaporylie, marvin_B8, piyuesh23, EclipseGc: Allow views contextual filters to expose the context using argument validation plugins

Issue #2807855 by phenaproxima, maijs, svendecabooter: Convert Block's Migrate source tests to new base class

Issue #2811519 by tim.plunkett, dbourrion, cilefen, futurmat: Blocks do not appear after being placed with the Rules module enabled (or other missing schemata for Condition plugins)

Revert "Issue #2811519 by tim.plunkett, dbourrion, cilefen, futurmat: Blocks do not appear after being placed with the Rules module enabled (or other missing schemata for Condition plugins)"

This reverts commit ed3202c3.

Issue #2811519 by tim.plunkett, dbourrion, cilefen, futurmat: Blocks do not appear after being placed with the Rules module enabled (or other missing schemata for Condition plugins)

Revert "Issue #2685917 by larowlan, tim.plunkett, cheeky-micah: Placing the same custom block, more than once, with a period in the title, results in an Error"

This reverts commit 803a98af.

Issue #2685917 by larowlan, tim.plunkett, cheeky-micah: Placing the same custom block, more than once, with a period in the title, results in an Error

Issue #2572801 by alexpott, vprocessor, andriyun, andypost, chishah92, Mile23, attiks, hussainweb, klausi, dawehner, pfrenssen: Fix 'Drupal.WhiteSpace.ScopeIndent' coding standard

Issue #2783393 by Mile23: Fix 'Drupal.Commenting.FunctionComment.IncorrectParamVarName' coding standard

Issue #2513534 by tim.plunkett, lokapujya, tedbow, LewisNyman, Manjit.Singh, alexpott, Maninders, Bojhan: Remove the 'disabled' region from Block UI

Issue #2537732 by Xano, tim.plunkett, gnuget, claudiu.cristea, drunken monkey, bojanz: PluginFormInterface must have access to the complete $form_state (introduce SubFormState for embedded forms)

Issue #2763157 by tim.plunkett, tedbow, chx, bojanz, twistor, neclimdul, dawehner, Xano, EclipseGc: Allow plugins to provide multiple forms

Revert "Issue #2773197 by jalpesh, tstoeckler: DefaultHtmlRouteProviderTest::testGetCollectionRoute() has wrong @covers"

This reverts commit a470bc0c.

Issue #2773197 by jalpesh, tstoeckler: DefaultHtmlRouteProviderTest::testGetCollectionRoute() has wrong @covers

Issue #2705977 by heddn, edysmp: D6/7->D8 migration: User role based block visibility settings doesn't filter missing roles