Updated mediawiki/extensions
Project: mediawiki/extensions/Parsoid  c1bd456a0eb2c334bf193632e36ab9655c6a6899

Bug 47890: Finally a proper fix to the POST size limit issue

The documentation was misleading as usual. Following the source through a few
layers helped though. This fixes the issue in local testing.

Change-Id: I1b3c3e9e8c686d66594f4673d8341e8630eefbac