update dependencies

Author: Amoki

package.json

@@ -24,11 +24,11 @@
     "redis": "^0.12.1",
     "restify": "^2.8.3",
     "restify-bunyan-logger": "^2.0.4",
-    "supertest": "^0.14.0",
+    "supertest": "^0.15.0",
     "yaqs": "^1.0.3"
   },
   "devDependencies": {
-    "should": "^4.1.0",
+    "should": "^4.3.0",
     "mocha": "^2.0.1",
     "jshint": "^2.5.6",
     "jscs": "^1.7.3"