Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  ad5310a7908a4e55c8c08e6d4d5b61d0d7d602ce

Update composer.json

This now specifies a conflict with MW < 1.23. Putting a requirement
for MW >= 1.23 might make more sense, though that has the downside
that one is no longer able to check out the repo and run
"composer update" without installation via MW.

Also updates some links

Change-Id: I5736fde7cbf803c23ec94de6448ad37e9e3e270c