Updated mediawiki/extensions
Project: mediawiki/extensions/Parsoid  3fb50dda33e1059686f8f914a9f8fa375ba91041

Allow localsettings.js to enable CORS requests.

CORS requests allow external apps (like Nell's Wikipedia) to use the
parsoid service.

Change-Id: I43576cabad79985ea4cf1d2da6c2e25f30dddd48