Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  e44e18b12ec7b24ead05fb9e1cda7640177062f9

Improvements and fixes to topic summarization

Adjustments to templating, JS, and styling to fix errors
Changed summary and summaryFormat keys to content and contentFormat for consistency

Change-Id: I804facc159177677472269db499347c95bce7bb0