Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  3c1962129c1c0540bf9fcde3d9da2b91cc5fd3ea

Cleanup ApiQueryFlow

* Defined $container
* Removed namespace that isn't used
* Removed deprecated getVersion() and useless getHelpUrls()

Change-Id: I73c29663da6e083b307eeeea611b3efc249bc120