Issue #2925064 by drpal, dawehner, droplet, xjm, webchick, justafish: [1/2] JS codestyle: no-restricted-syntax

Revert "Issue #2925064 by drpal, dawehner, xjm, justafish, droplet: [1/2] JS codestyle: no-restricted-syntax"

This reverts commit b0a4d7e0.

Issue #2925064 by drpal, dawehner, xjm, justafish, droplet: [1/2] JS codestyle: no-restricted-syntax

This reverts commit 169e8671.

Revert "Issue #994360 by DuaelFr, andypost, emosbaugh: #states cannot disable/enable radios and checkboxes"

This reverts commit 65c72068.

Issue #2548195 by nod_, JohnAlbin, madhavvyas, sriharsha.uppuluri: Only use single quotes in JavaScript and update .eslintrc

Issue #1239930 by irunflower, mgifford, babruix, peterpoe, ohthehugemanatee, droplet, nod_, Cottser, frazras, xjm: states.js appends span.form-required to every label of a dependent field

Issue #2473945 by Cottser, rachel_norfolk, axe312, davidhernandez, yannickoo, emma.maria, cilefen, akalata, jaxxed, LewisNyman: Prefix form-item classes with js-

Issue #2473951 by Cottser, cilefen, yannickoo, davidhernandez, LewisNyman: Prefix form-required classes with js-

Issue #2473953 by mortendk, rteijeiro, rachel_norfolk, Cottser, aburrows, LewisNyman: Prefix form-submit classes with js-

Issue #2152217 by joelpittet, mgifford, vijaycs85, jjcarrion, sun: Remove theme_form_required_marker() from the theme system - use CSS instead.

Issue #1996238 by sun, nod_, damiankloip, Wim Leers, longwave, alexpott, Xano, mdrummond, Mark Carver, Jeff Burnz, highrockmedia, joelpittet, et al: Replace hook_library_info() by *.libraries.yml file.

Issue #1913510 by erich_s, jibran, scresante, nod_, mitron: Core Javascript Files Not Using Standard Indentation.

Issue #1342198 by nod_, droplet, cosmicdreams, RobLoach, aspilicious: Use .on and .off instead of .bind, .unbind and .delegate.

Issue #2101427 by David_Rothstein, evilehk, nod_: Follow-up: Browser validation error with Chrome on hidden required fields, even on forms that don't allow client-side validation.

Issue #1168246 by sun, mgifford, Manuel Garcia, mbrett5062, ry5n, Everett Zufelt, nod_, aspilicious, deviantintegral, tim.plunkett: Freedom For Fieldsets! Long Live The DETAILS.

Issue #1263302 by andypost, peterpoe: Fixed States API disabled state handler filters out nonexistent class 'form-element'.