silverstripe/silverstripe-cms — pull request #244 by mateusz (2012-11-22 01:36:29+00:00)
Title: NEW Side by side editing functionality - first cut (os#7412)

Introduces a preview window that appears when the screen is wide enough,
removes old preview button, adds a draft-public switch, adds variety of
preview options which are not hooked up yet.

Relies on sapphire's f95fadc84416835302fe6c8448054960b5e7ec65

Goes along with https://github.com/silverstripe/sapphire/pull/966