Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  e1717fa5ed0726cc748e2d609298ec3dec431e37

Story 1628: Fix some of the mobile VE toolbar styles

This doesn't fix everything, but fixes the major glaring styling
problems. For the rest of it, we're going to wait until Trevor
implements skin support in the MW build of OO-ui.

Change-Id: I72f689d58133dad783ccf80e8e4758195f3bd28f