Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  749fe7e728c44f3422dc01e3a228f53cb4a450e2

Tools: Run make jshint with grunt

make jshint && make jshinttests now runs the respective grunt tasks
Equivalent to grunt jshint && grunt jshint:tests

Change-Id: Ifba729c8f94b57aea0423a78fba1fa2ef89105b3