Updated mediawiki/extensions
Project: mediawiki/extensions/Parsoid  551a9c9676e34d0e6de03e1b6373e4e4936f8119

Add a '--normalize' option to tests/parse.js.

This lets us debug passing/failing parserTests a bit more easily.

Change-Id: I5688ac0e79b423acafdc93013b30cf11d2df1845