Update OOjs UI to v0.1.0-pre (23565e7519)

New changes:
0557719 Use README.md as doxygen main page
290f8a9 Remove accidental double try-catch from 76800b47
e7039d0 Revert "Revert "Show the modal overlay as soon as openWindow is called""
61ac646 Fix lots of spelling mistakes and typos
5b381ae build: Create a 'typos' task to detect common typos
f21c8eb FieldLayout: Only use <label> for InputWidgets
39e8522 Localisation updates from https://translatewiki.net.
16eb98d PHP: Reject malformed and potentially evil input when outputting HTML

Change-Id: Ie039a451cf03eaf21e16538cfca270b1d9b8f7f9