Upgrade deps

package.json

@@ -29,17 +29,17 @@
     "knox": "^0.9"
   },
   "devDependencies": {
-    "async": "^1.3.0",
+    "async": "^2.1.4",
     "chai": "^3.0.0",
     "coveralls": "^2.8",
     "istanbul": "^0.4.3",
-    "mocha": "^2.2.4",
+    "mocha": "^3.2.0",
     "mongoose": "^4.0.2",
     "pre-commit": "^1.0.10",
     "proxyquire": "^1.0",
     "request": "^2.34",
     "sinon": "^1.9",
-    "standard": "^7.1.2"
+    "standard": "^8.6.0"
   },
   "pre-commit": [
     "test:coverage:check",