Update OOjs UI to v0.1.0-pre (7a0e222a75)

New changes:
ef2f66f Element: Add unit tests for focusin/focusout hack
54b09fd Element: Remove focusin/focusout hack in onDOMEvent
91ba7d3 Accessibility: Set role=dialog on dialogs
0447150 Accessibility: Restore element focus when a window closes
715f1ef Localisation updates from https://translatewiki.net.
9f343c0 Localisation updates from https://translatewiki.net.
6be64bc Tidy up SVG sources and fix pixel snapping
7a0e222 Fix scrollIntoView() in the case where the scrollable container is the <body>

Change-Id: I9d86a238546acc867f20aeb45b102c7499108c89