Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  048204a51b62ea1c48051d44c237c833238caef2

Use mw.Uri to parse query instead of prasing it with regx

This would solve the issue of passing encoded data to mw.api,
which then encode the data again.

Change-Id: I396c14578cc49c8cc10faf01ba83f46f2636cbf1