Updated mediawiki/extensions
Project: mediawiki/extensions/DataValues  16c90719bd20745a2cb61439310552c1ae6cfd9c

Implemented showSpinner() method in valueview.preview widget

A loading spinner can be displayed now instead of any previewed value. This may be used
when using a back-end parser while waiting for the AJAX request to return.

Change-Id: I1a687edc857c145ee36cc9405752e992c5eeb8df