Current XCode version being installed is [6.4](https://github.com/indigotech/dev-setup/blob/cda711002241828d09222df978eccdf106b1ea2f/.battleschool/playbooks/xcode-6.4.yml#L5), Android Studio is [1.3](https://github.com/indigotech/dev-setup/blob/cda711002241828d09222df978eccdf106b1ea2f/.battleschool/playbooks/android-studio-1.3.yml#L5) and both should be the latest.
