Issue #1825952 by Fabianx, joelpittet, bdragon, heddn, chx, xjm, pwolanin, mikey_p, ti2m, bfr, dags, cilefen, scor, mgifford: Turn on twig autoescape by default

Issue #2143291 by plach, alexpott, xjm, effulgentsia, pwolanin, swentel | yched: Clarify handling of field translatability.

Issue #1898070 by benjifisher, jjcarrion, LinL, idflood, joelpittet, oshelach, tlattimore, Les Lim, sergey.semashko, jesse.d, bdgreen, jenlampton, Cottser, duellj, artofeclipse, vlad.dancer, steveoliver, EVIIILJ, c4rl, elv, OpenChimp: File.module - Convert theme_ functions to Twig.

Issue #2089331 by grom358 | thedavidmeister: [meta] Replace calls to check_plain() with Drupal\Component\Utility\String::checkPlain().

Issue #1079116 by fearlsgroove, joachim, ryanissamson, manarth, katherined, droppinshucks, BiigNiick  | fietserwin: Fixed Inaccurate text: Images must be smaller than !max pixels.

Issue #2225739 by killua99, Berdir, andypost, pfrenssen: Remove usage of field_info_instances(), use EntityManager::getFieldDefinitions() instead.

Issue #2136197 by andypost, jessebeach, swentel, longwave, Berdir: Move field/instance/widget/formatter settings out of annotation / plugin definition.

Issue #2171071 by jessebeach, dawehner, chakrapani, longwave, Gábor Hojtsy, xjm, Wim Leers: Rename drupal_add_library() to _drupal_add_library() and remove its uses.

Issue #2200821 by yched, plopesc, Berdir, claudiu.cristea, swentel: Rename Fieldinterface and FieldInstanceInterface.

Issue #2042773 by yched, Berdir, pcambra: Change #items within a theme_field() render array from an *array* to the same $items *object* used throughout the rest of the formatter pipeline.

Issue #2072995 by claudiu.cristea, yched: Change notice: Move FAPI callbacks for file/image widgets in classes.

Issue #732022 by vijaycs85, Wim Leers, dawehner, nod_, kscheirer: Drupal_add_tabledrag() still using drupal_add_(js|library)(), should return array for #attached.

Issue #2041629 by tkoleary, mcrittenden, manningpete, superspring: Shorten ridiculously long and verbose text in file upload field.

Issue #1953408 by swentel, aspilicious, andypost, yched: Remove ArrayAccess BC layer from field config entities.

Issue #2015697 by claudiu.cristea, yched, Berdir, splatio: Convert field type to typed data plugin for file and image modules.

Issue #1497374 by yched, chx, amateescu, plach, Damien Tournoud, fago, swentel: Switch from Field-based storage to Entity-based storage.

Issue #2056405 by plopesc, yched: Let field types provide their support for 'default values' and associated input UI.

Issue #1987602 by glennpratt, juampy, pwieck, vijaycs85, dawehner, tim.plunkett, effulgentsia: Convert ajax_form_callback() to a new style controller.

Issue #2009014 by c4rl, hussainweb, Samvel, jenlampton, benjifisher: Replace theme() with drupal_render() in file module.

Issue #1969728 by yched, effulgentsia, swentel, fago, plach: Implement Field API 'field types' as TypedData Plugins.

Issue #1950632 by effulgentsia, Wim Leers, amateescu, yched: Create a FieldDefinitionInterface, decoupled from  and  config entities, and use it for formatters and widgets.

Issue #1818570 by Berdir, effulgentsia, das-peter, andypost: Convert users to the new Entity Field API.

This reverts commit 0e59a8d6.