Issue #2387669 by rpayanm, joachim, tadityar: ConfigInstallWebTest is broken
Issue #2389287 by dawehner: Missing PhpExecutableFinder
Issue #2369225 by mpdonadio: Add $options['base_url'] to UrlGenerator::generateFromRoute()
Issue #2382533 by Wim Leers: Attach assets only via the asset library system
Issue #2335879 by alexpott, dixon_, Wim Leers, chx, mauzeh, ygerasimov, jeqq: Change SqlContentEntityStorageSchema::requiresEntityDataMigration() to ask the old storage handler if it has data rather than assuming yes unless NULL storage
Issue #2388765 by alexpott: Improve performance of SqlContentEntityStorage::countFieldData() for large datasets when getting the result as a boolean
Issue #2388593 by JeroenT: Remove drupal_truncate_bytes()
Issue #2386247 by tstoeckler: install.php should pass the class loader down into install_begin_request()
Revert "Issue #2354705 by yannisc: Mark a couple of asset services as non public"

This reverts commit af8316875f7da8225e6c026423ac9d66b74ab31d.
Issue #2385111 by tadityar, Wim Leers: Bartik's CKEditor iframe stylesheet is not being loaded, hence image captions look broken
Issue #2387141 by Gábor Hojtsy: Missing field configuration schemas across core tests
Issue #2355245 by amateescu: ER's label formatter needs to take into account that $entity->urlInfo() might throw an exception
Issue #2390615 by alexpott: Add method to determine config dependency key depending on entity type
Issue #2390749 by alexpott: run-tests.sh should allow single test methods to be run
Issue #2387149 by Gábor Hojtsy, dawehner: Display extenders are not possible to describe with config schema
Issue #2389697 by Wim Leers, Gábor Hojtsy: Editor settings altering not needed (and not compatible with config schema assumptions)
Issue #2390445 by Gábor Hojtsy: System module tests don't pass config schema check
Issue #2248977 by Berdir: Complete support for multi-value base fields in ContentEntitySchemaHandler and use it for the user.roles field
Issue #2358269 by Gábor Hojtsy: Migration bugs in block visibility, field overrides, cron, maintenance settings and form modes found by configuration schema checking
Issue #2359509 by Berdir: Incorrect type safe check in Entity::onUpdateBundleEntity() results too many cache clears