Issue #2914110 by Berdir, neclimdul, acbramley, yongt9412, Wim Leers, arpad.rozsa, kim.pepper, Fabianx, davidwhthomas, pameeela, kualee, amateescu, jibran, longwave: Shortcut hook_toolbar implementation makes all pages uncacheable

Issue #988930 by davidwhthomas, jyve, tim.plunkett, effulgentsia, droplet, nod_ | mariusz.slonina: Fixed Sticky table headers need to react properly to 'show/hide weights column' link.

Issue #1294264 by budda, davidwhthomas: FieldUpdateForbiddenException: Cannot update a list field - better debug info.