Update OOjs UI to v0.1.0-pre (7b3672591f)

New changes:
5556abf demo: Make demo console more generic
142bd44 Dialog demos
6f65873 demo/widgets: Bring dev console back
32055e9 Minor refactor of widgets demo
d6b80e7 Watch dot files
7b36725 Localisation updates from https://translatewiki.net.

Change-Id: I8df89fd9404dfc443ec454958855e9c476241b8a