修改Gitlab配置文件
### Gravatar Settings
# gitlab_rails['gravatar_plain_url'] = 'http://www.gravatar.com/avatar/%{hash}?s=%{size}&d=identicon'
gitlab_rails['gravatar_plain_url'] = 'http://sdn.geekzu.org/avatar/%{hash}?s=%{size}&d=identicon' #添加这一行
# gitlab_rails['gravatar_ssl_url'] = 'https://secure.gravatar.com/avatar/%{hash}?s=%{size}&d=identicon'
gitlab_rails['gravatar_ssl_url'] = 'https://sdn.geekzu.org/avatar/%{hash}?s=%{size}&d=identicon' #添加这一行
