完成练习一：增加Contact
修改内容
使用插值将测试代码中的重复代码提取出来
修改测试用例，测试更加精准的内容
Merge branch 'feature-StaticPage' into develop
安装Guard，增加相关配置文件
配置Guard的自动测试
Merge branch 'feature-StaticPage' into develop
初始化Spork
配置Spork，为测试加速
Merge branch 'feature-StaticPage-Spork' into feature-StaticPage
Merge branch 'feature-StaticPage' into develop