Issue #1953408 by swentel, aspilicious, andypost, yched: Remove ArrayAccess BC layer from field config entities.
Issue #2095693 by Xano, tim.plunkett: Fixed FilterFormatAccessController always grants access for any operation on the fallback format.
Issue #1936216 by stkrzysiak, kfritsche, Schnitzel, webflo, grisendo: Fixed Configuration language selectors should have English even if English is not on the site.
Issue #1653026 by damiankloip, alexpott, sun, tim.plunkett, dawehner, mtift: Fixed All configuration values are stored as strings.
Issue #1969256 by zhuber, ronan.orb: Replace stdClass with object in param docs, as per standards
Issue #2057401 by plach, socketwench, kfritsche: Fixed Make the node entity database schema sensible.
Issue #2104329 by pameeela, larowlan: Fix see link in Xss class
Issue #2104353 by pameeela, larowlan: Fix up docblock for isLocked method on NodeTypeInterface
Issue #2084659 by Xano: Fix indentation in return docblock for db_installer_object
Revert "Issue #2057401 by plach, socketwench, kfritsche: Fixed Make the node entity database schema sensible."

HEAD broken; rolling back temporarily.

This reverts commit c72f39adbaa61d1a0906d8017db10efce41132e2.
Issue #2103145 by tim.plunkett, damiankloip, neclimdul: Fixed ParameterConverter mangles raw values.
Issue #1829170 by LinL, socketwench, vijaycs85, mtift, LittleCoding, andypost, dawehner, ianmthomasuk: Convert the Maintenance Theme variable to settings.
Issue #2049207 by dlu, blakehall, janstoeckler, ramlev, Moderate | Cottser: Replace .tpl.php with .html.twig in documentation.
Issue #2080217 by Wim Leers, tkoleary, Bojhan: Polish entity toolbar visually.
Issue #2102019 by nod_: Fixed Vertical tabs looks broken on small screens.
Issue #2057973 by aspilicious, Wim Leers: Don't add Edit module's data- attributes on pseudo fields (as used e.g. by Display Suite).
Issue #2105525 by Gaelan: Add note to Annotation topic about double quotes
Issue #2047997 follow-up by asimmonds: Remove FIELD_BEHAVIOR_* constants.
Issue #2102653 by tim.plunkett, disasm: Convert test form callbacks to new form controller.
Issue #2091315 by pokurek, petrpo: Fix up hook_help for dblog module