Updated mediawiki/extensions
Project: mediawiki/extensions/WikibaseJavaScriptApi  6e4535a58a8e4193148480ce8b83c69c0c2d4843

Updated code documentation

Updated code documentation to be able to generate documentation using JSDuck.
Includes resetting @since tags to 1.0.

Change-Id: I8d08e17970faec48565b1af6683594301725d41f