[enh] update npm dependency versions

searx/static/themes/oscar/package.json

@@ -1,15 +1,18 @@
 {
     "devDependencies": {
-        "grunt": "~0.4.5",
-        "grunt-contrib-uglify": "~0.6.0",
-        "grunt-contrib-watch": "~0.6.1",
+        "grunt": "^0.4.5",
         "grunt-contrib-concat": "~0.5.0",
         "grunt-contrib-jshint": "~0.10.0",
-        "grunt-contrib-less": "~0.11.0"
+        "grunt-contrib-less": "~0.11.0",
+        "grunt-contrib-uglify": "~0.6.0",
+        "grunt-contrib-watch": "~0.6.1"
     },
     "scripts": {
         "build": "npm install && grunt",
         "start": "grunt watch",
         "test": "grunt"
+    },
+    "dependencies": {
+        "grunt-cli": "^1.3.2"
     }
 }