Updated mediawiki/extensions
Project: mediawiki/extensions/WikibaseDataModel  09ec8a05c96b0e6686820e179d3255c533e08cbb

Implemented numeric index in Claims

Added optional "index" parameter to addClaim() to enable inserting a claim at a specific index
within the list of claims. Added indexOf() to retrieve the numeric index of a claim.

Change-Id: Iefeebdcc4c6bc8c477d3f234399bcd403466bd52