Update OOjs UI to v0.1.0-pre (f2c3f12959)

New changes:
f8e3599 Fix automatic sizing of windows
427b9a4 README: Add devDependencies badge
5018f7b build: Use csscomb to prettify the CSS
f2c3f12 Followup ec785c2: re-evaluate clipping state after positioning

Change-Id: I0e1d5d44a6e90a66cfa280c782b6e75ba44ce7c4