Updated mediawiki/extensions
Project: mediawiki/extensions/ZeroRatedMobileAccess  9563672f1b48a977ca2cdcf580d5af06e969c8cc

Simplified banner rendering and fixed empty partner URL

* Greatly simplified the code to generate banner
* Properly handle missing partner URL
* Removed impossible "display:None" style

Change-Id: Icae36b7126e9e08f91785947d0cab7e6ad7c2c00