Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  4b7664f19f7cc803cc9e3a8d54dfa5ceea101034

Fix page actions browser tests

Don't test on Main page, we disabled page actions on Main page with the
tablet redirect.

Change-Id: I7e918d0676881f460353dc2448c289c6d9dc3007