Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  5bcbcc45acdc7565145393ef0d9b3bb10269529b

Hygiene: Move Section to its own file.

For some reason an empty Section.js file exists already
so let's use it :)

Change-Id: Iee2db3200c5574955004ee3f52053acaf1f2e5eb