Issue #3033279 by lauriii, mandclu, Eli-T: Move markup from template_preprocess_image_widget to a template

Issue #1174892 by chr.fritsch, travist, Dave Reid, keithm, webchick, phenaproxima, Everett Zufelt, slashrsm, Wim Leers, RobW, seanB, xjm, Gábor Hojtsy, larowlan, ericduran, webflo, Berdir, pschuelke: File field formatters for rich media display with <video> and <audio> HTML5 elements

Issue #2473943 by Manjit.Singh, Cottser, mu5a5hi, LewisNyman, mortendk, rteijeiro, rachel_norfolk: Prefix form-file and form-managed-file classes with js-

Issue #2407565 by epari.siva, davidhernandez, akalata, pakmanlh, lauriii, vedpareek, Cottser, brianperry: Consensus Banana Phase 1, cleanup

Issue #2236855 by rachel_norfolk, stefank, ngocketit, lauriii, LewisNyman, alexpott, yuki77, rteijeiro | mortendk: Use CSS for file icons in file fields.

This reverts commit 354b6647.

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 #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.