Change-Id: Ibe135f6eeb924ad432adde2bd7464779285a9de1
Change-Id: Ice2d1a6640cca0533600a9e51a66ecf9125a8570
This is the final step of the process described at <https://www.mediawiki.org/wiki/Separating_skins_from_core_MediaWiki>. Corresponding core change: Idfc38503. Change-Id: I84fcf7ce6385b8323544cafe6912a00f1886d20d