Update OOjs UI to v0.1.0-pre (8ad150e4e7)

New changes:
94b6415 Use grunt-svg2png to convert SVG icons to PNG for distribution
319052d window.svg: Fix XML validity
eab00f2 build: Remove documentation lies from 'copy' task
67f83f1 Make CSS transplantation work in IE10
8ad150e Make the background reset for dialogs in Apex work in IE10

Change-Id: I01efa40a98c4e2d23dea1060cd8116dd30a1ddcd