Revert "Issue #2449445 by mortendk, alexpott, Cottser: Add "indentation" class back to indentation theme hook, use it for styling"

Broke table drag. :(

This reverts commit 4fd9ea47.

Issue #2449445 by mortendk, alexpott, Cottser: Add "indentation" class back to indentation theme hook, use it for styling

Issue #2399939 by DickJohnson, LewisNyman, mherchel, idebr, brahmjeet789: Refactor 'admin-panel' CSS component

Issue #2426595 by mortendk, brahmjeet789, LewisNyman, DickJohnson: rename indentation class to js-indentation

Issue #2422363 by mortendk, joelpittet, davidhernandez: Rewrite the menu CSS components inline with our CSS standards

Issue #2408467 by idebr, DickJohnson, LewisNyman, monobasic: Rewrite pager component inline with our CSS standards

Issue #2360175 by zaporylie, gaurav.goyal, droplet, sivaji@knackforge.com, mcdruid, nod_, er.pushpinderrana, brahmjeet789: Change .append(' ') with CSS style in system.admin.css

Issue #2417705 by idebr: Autocomplete suggestions visual regression after modal and jQuery UI update

Issue #2333719 by alvar0hurtad0, idebr, LewisNyman, msankhala: Abstract Views Exposed Form styling out into a reusable class

Issue #2336141 by lauriii, LewisNyman, rteijeiro, balagan, emma.maria, stefika: Create reusable color classes

Issue #2372023 by andybroomfield, BarisW, aspilicious, LewisNyman, Vally79, tompagabor: Description of display settings takes too much space

Issue #2388301 by Sam152: Use CSS escape sequence in breadcrumb styles to prevent erroneous delimiter output

Issue #2226863 by cs_shadow, filijonka, joelpittet, pguillard: Update stale references to theme functions that have been converted to Twig

Issue #1759090 by andrewmacpherson, InternetDevels, jjcarrion: Remove redundant CSS from theme settings form

Issue #1833932 by lauriii, lokapujya, cilefen, Cottser, joelpittet, jenlampton, iMiksu, lanchez, ericrdb, mikispeed, Eric_A, mikemiles86: Convert theme_system_compact_link() into a #type link

Issue #1663166 by LewisNyman, Manuel Garcia, JamesLefrère, BarisW, sqndr, tompagabor: Clean up system admin css

Issue #2227401 by emma.maria, tompagabor, Aleksandar_P | LewisNyman: Apply the seven style guide to the status report.

Issue #1623574 by droplet, cilefen, cesarmiquel, patrickfgoddard, sun, zaporylie, er.pushpinderrana, stevecowie, mbroere: Fixed Remove trailing space from form element labels and field labels (HTML nbsp).

Revert "Issue #1842140 by mdrummond, tonystar, gavin.hughes, killerpoke, lauriii, droweski, stevector, omg-its-maggie, jenlampton, Renee S: Remove title and wrapper div from theme_item_list."

This reverts commit 79395676.

Issue #2215543 by Antti J. Salminen, mrjmd, alexrayu, olemedia | joelpittet: Replace strong tag with CSS in template_preprocess_authorize_report and remove id..

Issue #1842140 by mdrummond, tonystar, gavin.hughes, killerpoke, lauriii, droweski, stevector, omg-its-maggie, jenlampton, Renee S: Remove title and wrapper div from theme_item_list.

Issue #1912608 by Cottser, ckrina, jamesquinton, lauriii, jwilson3, mgifford, scaragucc' | criz: Update pagination markup for new CSS standards and improved accessibility.

Issue #1777332 by hass, Cottser, mike.roberts, joelpittet, dawehner | jenlampton: Replace theme_menu_link() and menu-tree.html.twig with a single Twig template.

Issue #2274631 by joelpittet, mgifford, droplet, LewisNyman | hass: Fixed Form required marker "\204E" is broken in Google Chrome 35 / Internet Explorer 9.

Issue #2213583 by lauriii, sqndr, Crisz, herom, jamesquinton, esod, Rajendar Reddy, zserno, er.pushpinderrana, cs_shadow, amitgoyal | JayeshSolanki: Fixed Misaligned Icons in Drupal 8.x.

Issue #2330251 by seiplax: Fixed Enable/disable module/extension checkbox does not get needed margin.

Issue #1898478 by joelpittet, Cottser, lokapujya, m1r1k, jstoller, er.pushpinderrana, duellj, organicwire, jessebeach, idflood, Jalandhar, Risse, derheap, galooph, mike.roberts, tlattimore, nadavoid, LinL, steveoliver, chakrapani, likin, killerpoke, EVIIILJ, vlad.dancer, podarok, m86 | c4rl: Menu.inc - Convert theme_ functions to Twig.

Issue #2031301 by andypost, Cottser, xjm, mark.labrecque, mariacha1, joelpittet, robynlgreen, danquah, trogels, Eric_A, thedavidmeister, jenlampton: Replace theme_more_link() and replace with #type 'more_link'.

Issue #1510544 by swentel, Bojhan, Gábor Hojtsy, merlinofchaos, Cottser, Wim Leers, plopesc, aspilicious, sannejanssen,  larowlan, tim.plunkett, nod_: Fixed Show previews in front-end theme, able to select different view modes.

Issue #2207695 by Manuel Garcia, LewisNyman, pakmanlh, mitsuroseba, Sam152: Expand the throbber API to include a 'full screen' option.