Updated mediawiki/extensions
Project: mediawiki/extensions/OpenID  eb2e10ace788175e6ef48017211fb80ac9f77257

(bug 44849) improved icons for provider selection page

removed dead openid provider logos (Vox, Vidoop)

bumped to version 3.31 20130508

Change-Id: Ia4fe10ae54fb9d0e58913986f9f63b0d36762ba8