Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  b1443420f5ad273d7e12a568c57bf3f0ee59d8eb

Hygiene: Standardize spelling of API classes and methods.

Before it was mixed between api/Api and API, even in the same file.
There was also e.g. renderAPI but formatApi.

Since core using Api for API class names and mw.Api on the client,
standardize on that.

Change-Id: I5a316b4c3f1148f1a5dad1e4d731a25f4b162d4c