Update devDependencies

Author: edg2s

.eslintrc.json

@@ -7,5 +7,8 @@
 	},
 	"globals": {
 		"RangeFix": false
+	},
+	"rules": {
+		"max-len": "off"
 	}
 }

package.json

@@ -14,11 +14,11 @@
 		"test": "grunt test"
 	},
 	"devDependencies": {
-		"eslint-config-wikimedia": "0.5.0",
-		"grunt": "1.0.1",
-		"grunt-eslint": "20.0.0",
-		"grunt-stylelint": "0.8.0",
-		"stylelint": "8.2.0",
-		"stylelint-config-wikimedia": "0.4.2"
+		"eslint-config-wikimedia": "0.11.0",
+		"grunt": "1.0.4",
+		"grunt-eslint": "21.0.0",
+		"grunt-stylelint": "0.10.1",
+		"stylelint": "9.6.0",
+		"stylelint-config-wikimedia": "0.5.0"
 	}
 }