Updated mediawiki/extensions
Project: mediawiki/extensions/Vector  018c085bdaffce8974efe557c1603ff767c73a96

Use background-image: none instead of background: none

IE apparently gets confused otherwise.

Bug: 50516
Change-Id: I8560e8d0033906a75fe46bbb389583c0e6969f7a

Remove unnecessary h5 selectors

They were only here for backwards-compatibility due to HTML caching
(see bug 42452).

Change-Id: If1c65d5df8434f06607da99d2380e7b53dfb02e5