Issue #1392754 by tss, justAChris, jhodgdon: Comply with new documentation standards for @file for namespaced class files

Issue #2303765 by davidhernandez, larowlan, mgifford: Make the default 'alt' attribute for Image fields required

Issue #2396687 by hussainweb: Clean-up image module test members - ensure property definition and use of camelCase naming convention

Issue #2183983 by Gábor Hojtsy, vijaycs85, Berdir, Wim Leers, webflo, alexpott: Find hidden configuration schema issues

Issue #1433796 by hampercm, claudiu.cristea, joshi.rohit100, gitesh.koli, undertext, yoroy, larowlan, rpayanm, opratr, jaffaralia, webbykat, nmudgal: Link to images styles from image field display settings

Issue #2376899 by Gábor Hojtsy: ImageFieldTestBase::createImageField() takes a description in field settings errorneously

Issue #2368349 by Gábor Hojtsy, alexpott: Entity view and form display configuration schemas are too verbose / key ones missing

Issue #2312093 by alexpott, yched, andypost, swentel | xjm: Rename FieldInstanceConfig to FieldConfig.

Issue #2287727 by yched, swentel, alexpott: Rename Field[instance]Config classes and entity types (again).

Issue #2095303 by swentel, plopesc, Berdir, claudiu.cristea, yched: Rename 'field_entity' to 'field_config' and 'field_instance' to 'field_instance_config'.

Issue #1988612 by effulgentsia, yched, Wim Leers, Berdir, Pancho: Apply formatters and widgets to rendered entity base fields, starting with node.title.

Issue #2074037 by Wim Leers, effulgentsia: Add drupalPostUrl() — drupalPost()/drupalPostAjax() are for forms only, D8 JS performs non-form HTTP requests.

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

Issue #1981316 by aspilicious, andypost, pcambra, swentel: Drop procedural usage of fields in [f-l] modules.

Issue #1620010 by dawehner, ParisLiakos, plach, jibran: Move LANGUAGE constants to the Language class.

Issue #1751606 by swentel, ry5n, mrfelton, nod_, sun, sannejanssen: Move published status checkbox next to 'Save'.

Issue #1782244 follow-up by sun, znerol: Fixed Convert image styles  array into ImageStyle (extends ConfigEntity).

Issue #1852966 by yched, Stalski, zuuperman, swentel: Rework entity display settings around EntityDisplay config entity.

Revert "Issue #1852966 by yched, swentel: Rework entity display settings around EntityDisplay config entity."

This reverts commit 8ad67af2.

Issue #1852966 by yched, swentel: Rework entity display settings around EntityDisplay config entity.

Issue #1782244 by heyrocker, andypost, tstoeckler: Convert image styles  array into ImageStyle (extends ConfigEntity).

Issue #1308564 by amontero, madmatter23, kbasarab, guile2912, Deciphered: Added Basic token support in fields' help texts.

Issue #1711070 by kid_icarus, tim.plunkett, xjm, droplet, zendoodles and cam8001: Convert tests to use ::$modules property instead of parent::setUp($modules).