Issue #2744877 by katzilla, dernetzjaeger, biancajs, chipway, Gábor Hojtsy, catch, romainj, lucur, yoroy, kamalrajsahu21, dietmarg: Node add form shows 'create new revision' checkbox

Issue #2407955 by dernetzjaeger, darketaine, stefan.r, ChuChuNaKu, ironkiat, LewisNyman, Cottser, wellme, mgifford, emma.maria: Clean up unused images in the Seven theme

Issue #2405057 by nlisgo, Manjit.Singh, ctraltdel, madhavvyas, avitslv, LewisNyman, emma.maria, joelpittet, dernetzjaeger, wmortada, karolus, cilefen, Noe_, davidhernandez, idebr: Replace arrow-asc and arrow-desc images with Libricons and implement using CSS

Issue #2407715 by crowdcg, davidhernandez, mortendk, sivaji@knackforge.com, Manjit.Singh, dernetzjaeger: Remove classes from system templates b*.html.twig

Issue #2349759 by davidhernandez, mortendk, rteijeiro, harish86, Sumit kumar, saki007ster, Mukeysh, brahmjeet789, nitishchopra, falkendk, Maninder, Vidushi Mehta, Ashish sandil, jitendra verma, crowdcg, sivaji@knackforge.com, dernetzjaeger: Copy system templates to Classy.

Issue #2402639 by Katiemouse, nitvirus, lakshminp, dernetzjaeger, emma.maria, gippy, kporras07, john guant, Prashant.c: Rename the footer regions in Bartik