Issue #2878548 by alexpott, droplet, Cottser, idebr, joelpittet, xjm, martin107: Fix CSS whitespace issues

Issue #2398463 by amolnw2778, DickJohnson, thamas, emma.maria, LewisNyman, tadityar, lauriii, Manjit.Singh, trboslav, haasontwerp, richgilbert, pguillard, rachel_norfolk, Maninders, rteijeiro: Clean up the "content" component in Bartik

Issue #2470069 by wadmiraal, Manjit.Singh, pjbaert, zakxxi, LewisNyman: Refactor color module CSS inline with our CSS standards

Revert "Issue #2470069 by wadmiraal, Manjit.Singh, pjbaert, zakxxi, LewisNyman: Refactor color module CSS inline with our CSS standards"

This reverts commit 1ea7b90a.

Issue #2470069 by wadmiraal, Manjit.Singh, pjbaert, zakxxi, LewisNyman: Refactor color module CSS inline with our CSS standards

Issue #2031641 by aburrows, lauriii, nlisgo, Pol, redsquid, tuutti, LewisNyman, akalata, agviu, kallehauge, _nolocation, rpayanm, saki007ster, mdrummond, RavindraSingh, brahmjeet789: Change active class to is-active

Issue #2396489 by herom, rachel_norfolk, WigglyKoala, emma.maria, vijaycs85, jjcarrion: Add missing RTL rules to Bartik theme CSS

Issue #2142653 by corbacho, sqndr, LewisNyman, floretan, BarisW, G-raph, JamesLefrère, lokapujya, LoMo, Outi: Change default logo filetype to .svg and add an SVG version of Druplicon

Issue #2266751 by cfox612, Pancho: Fixed Update and improve links styling in preview.css to mirror current values.

Issue #1872598 by LewisNyman, rachel_norfolk, echoz, djbobbydrake: Fixed Bartik color settings not responsive.

Nate Lampton authored Oct 30, 2011 and catch committed Nov 01, 2011

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

#987102 by Jeff Burnz, tim.plunkett: Fixed Preview logo not removed when logo theme setting is off in Bartik

#844734 by Jeff Burnz, tim.plunkett, dead_arm: Catch preview.css up to style.css changes so color.module changes are accurately reflected.

#683026 by jensimmons, JohnAlbin, Jeff Burnz, Jacine, stephthegeek, bleen18, smerrill, et al: New core theme: Bartik, a flexible, re-colorable theme with many regions that shows off what Drupal can do. Truly a team effort. :)