parallel test server

Author: Lukas Schmidt

.travis.yml

@@ -2,9 +2,12 @@ language: objective-c
 xcode_project: Socket.IO-Client-Swift.xcodeproj # path to your xcodeproj folder
 xcode_scheme: SocketIO-iOS
 osx_image: xcode7
-script: xcodebuild -project Socket.IO-Client-Swift.xcodeproj -scheme SocketIO-iOS -sdk iphonesimulator build test  CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
+before_install:
+  - brew update
+  - brew outdated xctool || brew upgrade xctool
+script: xctool -project Socket.IO-Client-Swift.xcodeproj -scheme SocketIO-iOS -sdk iphonesimulator build test  CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO
 before_install: cd Socket.IO-Test-Server/ && npm install && cd ..
-install: node Socket.IO-Test-Server/main.js
+install: node Socket.IO-Test-Server/main.js &
 cache:
   directories:
     - Socket.IO-Test-Server/node_modules