chore(deps): upgrade all dev dependencies

Author: Hans Kristian Flaatten

package.json

@@ -41,13 +41,13 @@
   },
   "homepage": "https://github.com/Turistforeningen/node-mongo-querystring",
   "devDependencies": {
-    "JSONStream": "^1.0.7",
-    "express": "^4.13.3",
-    "jshint": "^2.8.0",
-    "mocha": "^2.3.4",
-    "mongodb": "^2.0.52",
-    "qs": "^5.2.0",
+    "JSONStream": "^1.1.1",
+    "express": "^4.13.4",
+    "jshint": "^2.9.1",
+    "mocha": "^2.4.5",
+    "mongodb": "^2.1.11",
+    "qs": "^6.1.0",
     "semantic-release": "^4.3.5",
-    "supertest": "^1.1.0"
+    "supertest": "^1.2.0"
   }
 }