Updated mediawiki/extensions
Project: mediawiki/extensions/Math  9f78cf77a30bcdeeeb6828faeb447208457cd6ec

Remove display:inline-block highlight hacks for math nodes

With getClientRects these are no longer necessary.

Depends on I09f1c0850 in VE core.

Change-Id: I2c4c1809a92c6d2cbf6769782f7595a508d823ea