Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  716febebe757ff546728217d9cfbc10629e2d67d

postsummary_revId should be topicsummary_revId

Click on the timestamp in a post summary under topic history

Change-Id: I8d975f0ce0eadae24e0691a11e3d3a5e592b7cfc