Updated mediawiki/extensions
Project: mediawiki/extensions/TwitterCards  53bb110e78a713f4d9e47191dc4c293fa74c6dd5
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TwitterCards Extension - Initial code

This proof of concept and extension skeleton works is intended to
show early the Twitter Cards integration in MediaWiki possibilities.

It currently only works with images.

Change-Id: Ia59895197be2e27802b02245b62f33c72a4f8e42