Updated mediawiki/extensions
Project: mediawiki/extensions/Translate  715c2da548a6fd5b9761145ebf59c7b57ab46714

Update composer.json so it contains the basics

Now we have to update the Translate initialisation and a ULS dependency
once there is an entry for it.

Change-Id: I3d52bca131dafa1171fb24dfdbe3725a98c36ae1