Issue #2380607 by Berdir, dawehner: Do not call ConfigBase::validateKeys() for data loaded from storage
Issue #2388043 by daffie: Remove DrupalUnitTestBase
Issue #2084987 by andypost, Jalandhar: Remove usage of field_ui_default_value and recommend proper replacement
Issue #2263359 by jhodgdon: hook_help(): Top of page help sections can't link to help pages without a fatal error or checking for help module
Issue #2355909 by penyaskito, alexpott, Gábor Hojtsy, DuaelFr: language.settings config is not scalable
Issue #2388707 by damiankloip: UserAccessControlHandler has wrong $explicit_check_fields name for the password field when checking field access
Issue #2388631 by JeroenT: Remove drupal_match_path()