Composer Setup
1. Choose the command-line PHP you want to use.
选择使用可以命令行的PHP程序
2. proxy Settings - choose if you want to use a proxy.
代理设置(如果不需要，不需要设置，直接点击下一步即可)
3. 安装完成 composer.exe 之后，先关闭所有的文件窗口，以及命令行窗口，重新打开命令窗口.
4. 切换到你需要通过 composer 安装依赖包的项目目录.
Installing Dependencies via Composer
Vökuró's dependencies must be installed using Composer. Install composer in a common location or in your project:
curl -s http://getcomposer.org/installer | php
Run the composer installer:
cd vokuro // windows 命令窗口切换目录方式
php composer.phar install