Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  9183b0a47a8b5a55bf9f7762022b6fa5305006b4

Added option to run mobile frontend tests at en.m.wikipedia.beta.wmflabs.org

Created three new Jenkins jobs:

- en.m.wikipedia.beta.wmflabs.org-MobileFrontend-linux-android
- en.m.wikipedia.beta.wmflabs.org-MobileFrontend-mac-ipad
- en.m.wikipedia.beta.wmflabs.org-MobileFrontend-mac-iphone

Change-Id: Ibb74ccb36025dc50c562a7359a314db600ad3312