Add socket.io dependencies

package.json

@@ -21,13 +21,15 @@
     "randomcolor": "^0.4.4",
     "sequelize": "^3.30.0",
     "sequelize-cli": "^2.5.1",
-    "slug": "^0.9.1"
+    "slug": "^0.9.1",
+    "socket.io": "^1.7.3"
   },
   "devDependencies": {
     "chai": "^3.5.0",
     "chai-http": "^3.0.0",
     "chai-things": "^0.2.0",
     "mocha": "^3.2.0",
-    "morgan": "^1.7.0"
+    "morgan": "^1.7.0",
+    "socket.io-client": "^1.7.3"
   }
 }