Updated mediawiki/extensions
Project: mediawiki/extensions/VectorBeta  9ba47df322c651da337d12540246c66ec2447c63

Give Vector/Winter Minerva's hamburger menu icon

This adds responsiveness to Vector and pushes it towards the
mobile design.

Dependency: Id75b675ea9b4d332c5350026609897c8ebb40b01
Change-Id: I1492f2aaadd037674007fd973f0af2bf9f2306ae