Updated mediawiki/extensions
Project: mediawiki/extensions/Math  f590974c2506ff4205e7c9bb146c89297deeeb88

Add default display options

In some cases for example if the vagrant role
mobilefrontend is enabled the stylesheets are not
processed on mobile devices.
Without a default setting for the display attribute
all elements are displayed at the same time.

Change-Id: Ic0e95effaf0b413ec4c5878e1cfd5c269daa44c3