Issue #2809635 by markconroy, navneet0693, alexpott, smaz, larowlan, Eli-T, webchick, yoroy, ikit-claw, budda, kjay, timmillwood, tkoleary, Gábor Hojtsy, andrewmacpherson, lauriii, JayKandari, jibran, ok_lyndsey, big_man, ckrina, nathancz, Paul_Gregory, vijaycs85, SharJay, tomphippen, tim.plunkett, Tarun Lewis, cehfisher, kreynen, Petr Illek, mariohernandez, thamas, thatdamnqa, John Cook, philipnorton42, h2cm, kattekrab, martin_q, waako: Create experimental installation profile

Issue #2282519 by alexpott, cilefen: Fixed Add content dependency information to configuration entities.

Issue #2233787 by alexpott, xjm | tim.plunkett: Move default configuration into extension/config/install to clarify its purpose.

Issue #2080823 by alexpott, swentel, Wim Leers: Create API to discover content or config entities' soft dependencies and use this to present a confirm form on module uninstall.

Issue #2167623 by danilenko_dn, sidharthap, Nitesh Sethia, krishnan.n, aitiba, alexpott, ashwinikumar, Barrett, damiankloip, deepakaryan1988, foxtrotcharlie, ianthomas_uk, neetu morwani, nonsie, piyuesh23, Sharique, sivaji, sushantpaste, swentel, vijaycs85, YesCT: Add test for all default configuration to ensure schema exists and is correct.

Issue #2105939 by Wim Leers, vijaycs85: Make sure all YML files in Editor module has no type-casting to string + config system changes broke image uploading in editors.

Issue #1872206 by jessebeach, quicksketch, Wim Leers, mgifford: Fixed Improve CKEditor toolbar configuration accessibility.

Issue #1932652 by Wim Leers, nirbhasa, quicksketch: Add image uploading to WYSIWYGs through editor.module.

Issue #1879120 by quicksketch, Wim Leers, larowlan, frega: Use Drupal-specific image and link plugins — use core dialogs rather than CKEditor dialogs, containing alterable Drupal forms.

Issue #1933914 by Wim Leers, Bojhan, quicksketch, wwalc: Enable CKEditor in the Standard install profile's 'Full HTML' text format.