Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  2a0863a3cfe280430723f38c6721287b0117cd73

Remove relative timestamps in favor of cldr

The cldr extension already generates timestamps exactly like the
Templating::getApproxHumanTimestamp method, except it properly
handles internationalization already.

Change-Id: I4e5fdbd52b3cd5e576c3812fc30a2d1edba0587a