Updated mediawiki/extensions
Project: mediawiki/extensions/DonationInterface  a848405395450dbe4f4f6af687f013f53d6fa902

Use class_alias to select WmfFramework

This will allow us to use Composer autoload in DonationInterface.

Note that this change in DonationInterface.php will go away in a
commit or two when we actually start using the vendor classes.

Change-Id: Ie97faa2c6d72ef2acfcfda3cf6d24e24bb4de5c7