Update OOjs UI to v0.1.0-pre (7788dc6700)

27832b1 Moved PNG icons to their own variant
06cf9a3 Make disabled state inheritable
4dd81c9 Removed some of the drop-shadows on buttons
88efa8e Localisation updates from https://translatewiki.net.

Change-Id: Ie66d907e8edabe722e2c2d2662a902e2aec1e1a7
Merge "Update OOjs UI to v0.1.0-pre (7788dc6700)"