[chore] Bump dependencies (#560)

Author: darrachequesne

package.json

@@ -26,42 +26,42 @@
     "component-emitter": "1.2.1",
     "component-inherit": "0.0.3",
     "debug": "2.3.3",
-    "engine.io-parser": "2.0.2",
+    "engine.io-parser": "2.0.3",
     "has-cors": "1.1.0",
     "indexof": "0.0.1",
     "parsejson": "0.0.3",
     "parseqs": "0.0.5",
     "parseuri": "0.0.5",
-    "ws": "1.1.2",
+    "ws": "2.2.3",
     "xmlhttprequest-ssl": "1.5.3",
     "yeast": "0.1.2"
   },
   "devDependencies": {
-    "babel-core": "6.4.5",
+    "babel-core": "^6.24.0",
     "babel-eslint": "4.1.7",
-    "babel-loader": "6.2.1",
-    "babel-preset-es2015": "6.3.13",
-    "blob": "0.0.4",
-    "concat-stream": "1.5.2",
-    "del": "2.2.0",
-    "derequire": "1.2.0",
+    "babel-loader": "^6.4.1",
+    "babel-preset-es2015": "^6.24.0",
+    "blob": "^0.0.4",
+    "concat-stream": "^1.6.0",
+    "del": "^2.2.2",
+    "derequire": "^2.0.6",
     "engine.io": "2.1.1",
     "eslint-config-standard": "4.4.0",
     "eslint-plugin-standard": "1.3.1",
-    "expect.js": "0.2.0",
-    "express": "3.4.8",
-    "gulp": "3.9.0",
+    "expect.js": "^0.3.1",
+    "express": "4.15.2",
+    "gulp": "3.9.1",
     "gulp-eslint": "1.1.1",
-    "gulp-file": "0.2.0",
-    "gulp-istanbul": "0.10.3",
-    "gulp-mocha": "2.2.0",
+    "gulp-file": "^0.3.0",
+    "gulp-istanbul": "^1.1.1",
+    "gulp-mocha": "^4.3.0",
     "gulp-task-listing": "1.0.1",
-    "istanbul": "0.2.3",
-    "mocha": "1.16.2",
+    "istanbul": "^0.4.5",
+    "mocha": "^3.2.0",
     "webpack": "1.12.12",
-    "webpack-stream": "3.1.0",
-    "zuul": "3.11.0",
-    "zuul-builder-webpack": "1.1.0",
+    "webpack-stream": "^3.2.0",
+    "zuul": "^3.11.1",
+    "zuul-builder-webpack": "^1.2.0",
     "zuul-ngrok": "4.0.0"
   },
   "scripts": {