Update OOjs UI to v0.1.0-pre (7f4ba6b368)

New changes:
7c5b3f5 Revert "Followup ca6a16f: use parent selector both for hiding and showing windows"
7f4ba6b Revert "Show the modal overlay as soon as openWindow is called"

Change-Id: I48cd7d64e7931e2d2bf9a3ba0d480384ab0a561f
Merge "Update OOjs UI to v0.1.0-pre (7f4ba6b368)" into wmf/1.25wmf9