Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  7c31b89821605c888505705decd5c89bdcffd4eb

Add ApiFlowViewTopicSummary

Adds a new API module, similar to the existing ones, to request a
specific topic summary.

Change-Id: Ic8d62378ff8c17bbb3c46e166868949ec1a98e41