Updated mediawiki/extensions
Project: mediawiki/extensions/Parsoid  ea9a04f42a8c014bcdfc8b863d416bd49b3073ef

Bug 56058: Use https to pull in es6-shim

Also point to es6-shim master. Should update to the next release when that
becomes available.

Change-Id: If9e779003b1dad9f7615f6176669ff890c7d7d56