frontend: pin toolchain versions

frontend/package.json

@@ -2,24 +2,24 b''
   "name": "errormator",
   "description": "JS layer for Errormator",
   "devDependencies": {
-    "bower": "",
-    "bower-requirejs": "",
-    "grunt": "",
-    "grunt-angular-templates": "~0.5.7",
-    "grunt-bower-concat": "~0.3.0",
-    "grunt-bower-requirejs": "~1.0.0",
-    "grunt-contrib-concat": "~0.5.0",
-    "grunt-contrib-copy": "~0.5.0",
-    "grunt-contrib-jshint": "",
-    "grunt-contrib-less": "~0.11.4",
-    "grunt-contrib-nodeunit": "",
-    "grunt-contrib-requirejs": "~0.4.4",
-    "grunt-contrib-uglify": "",
-    "grunt-contrib-watch": "",
-    "grunt-remove-logging": "~0.2.0",
-    "karma": "^0.12.37",
-    "underscore": "~1.6.0",
-    "yo": "",
-    "ini": ""
+    "bower": "1.7.9",
+    "bower-requirejs": "1.2.0",
+    "grunt": "1.0.1",
+    "grunt-angular-templates": "1.0.4",
+    "grunt-bower-concat": "1.0.0",
+    "grunt-bower-requirejs": "2.0.0",
+    "grunt-contrib-concat": "1.0.1",
+    "grunt-contrib-copy": "1.0.0",
+    "grunt-contrib-jshint": "1.0.0",
+    "grunt-contrib-less": "1.3.0",
+    "grunt-contrib-nodeunit": "1.0.0",
+    "grunt-contrib-requirejs": "1.0.0",
+    "grunt-contrib-uglify": "1.0.1",
+    "grunt-contrib-watch": "1.0.0",
+    "grunt-remove-logging": "0.2.0",
+    "karma": "0.13.22",
+    "underscore": "1.8.3",
+    "yo": "1.8.4",
+    "ini": "1.3.4"
   }
 }