Updated mediawiki/extensions
Project: mediawiki/extensions/Parsoid  b8da28df11091026e7ec22d77ab0e3ec827eca95

Escape characters jshint considers unsafe.

See https://github.com/jshint/jshint/blob/master/src/stable/reg.js#L14-L15

Change-Id: If1644a3c3c1fb0cd125aab9ccc7ed34b40c1583d