Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  b5d5f9a8b5b27fd1ed2373d1ae72bedfb7d54ded

mw.flow.api.read returns a jQuery.Promise, not a Deferred

Change-Id: Ied3d5d7420395ae5f361f59db1d50f52c75c9a49