feat(deps): update socket.io to 1.7.4 to avoid issue with ws@1.1.2

wehriam · dignifiedquire · commit 264442be8beb · 2017-06-26T20:37:35.000+02:00
Closes #2593
diff --git a/package.json b/package.json
@@ -349,7 +349,7 @@
     "range-parser": "^1.2.0",
     "rimraf": "^2.6.0",
     "safe-buffer": "^5.0.1",
-    "socket.io": "1.7.3",
+    "socket.io": "1.7.4",
     "source-map": "^0.5.3",
     "tmp": "0.0.31",
     "useragent": "^2.1.12"
