build: Bump devDependencies to latest
build: Bump devDependencies to latest

 grunt                 1.0.1  →  1.0.2
 grunt-banana-checker  0.4.0  →  0.6.0
 grunt-contrib-jshint  1.0.0  →  1.1.0
 grunt-jsonlint        1.0.7  →  1.1.0

Change-Id: I9bfdea79db0837f452c62ecb84148e4e65ef30ee

wikimedia/mediawiki-extensions-Disambiguator,wikimedia/mediawiki-extensions-Disambiguator