Updated mediawiki/extensions
Project: mediawiki/extensions/LocalisationUpdate  1844f0d1e397a54efb223f9eb9c16138e58e0081

Update the README

There are no tables in this extension any more.

Also delete ancient KNOWN_ISSUES file

Change-Id: Icd765ff6144f5d7e63da2478ee92cfe1e7560b4f