Merge pull request #315 from textpattern/dependabot/npm_and_yarn/grunt-contrib-jshint-3.0.0

Bump grunt-contrib-jshint from 2.1.0 to 3.0.0

Author: philwareham

package.json

@@ -17,7 +17,7 @@
     "grunt-concurrent": "3.0.0",
     "grunt-contrib-clean": "2.0.0",
     "grunt-contrib-copy": "1.0.0",
-    "grunt-contrib-jshint": "2.1.0",
+    "grunt-contrib-jshint": "3.0.0",
     "grunt-contrib-uglify": "5.0.0",
     "grunt-contrib-watch": "1.1.0",
     "grunt-postcss": "0.9.0",