Updated mediawiki/extensions
Project: mediawiki/extensions/WikiEditor  d83f06de1aaedabda44d4dcbb3c80737beae939f

Make edit toolbar accessible to screen readers

Removed redundant attributes, added aria-* attributes and properly
declared the links with role=button.
Tested with JAWS 14 and NVDA.

Bug: 24592
Change-Id: I27e18798d18b63655ea716eee2be1c7ab5303759