Updated mediawiki/extensions
Project: mediawiki/extensions/Parsoid  c6bf180b22d440b695090150f02df68abd9bf4fc

Added --domdiff option to pass in diff-marked DOM for selser testing

* To be used like this:

node parse --html2wt --selser --oldtextfile src.wt --domdiff
diff.html < modified.html

Change-Id: I9dcef701de4b7146d4e9c8ae62bdf5fda1a2bcf3