deps: bump grunt to 1

package.json

@@ -8,6 +8,7 @@
     "npm": "6.4.1"
   },
   "scripts": {
+    "dist": "grunt",
     "start": "node ./bin/www"
   },
   "dependencies": {
@@ -17,7 +18,8 @@
     "debug": "2.2.0",
     "express": "4.13.3",
     "geoip-lite": "1.1.6",
-    "grunt": "^0.4.5",
+    "grunt": "^1.0.3",
+    "grunt-cli": "^1.3.2",
     "grunt-contrib-clean": "^0.6.0",
     "grunt-contrib-concat": "^0.5.1",
     "grunt-contrib-copy": "^0.8.0",