patch: 
用户姓名的部分，根据issues#655。
为了修改方便
alias：
方法     之前显示            调整之后
name     firstname+lastname  login
nickname xxx                 login
realname xxx                 firstname+lastname

User model经过修改，已经完全集成了user_extensions的功能
例如
user.gender=1
user.save
user_extensions字段会自动保存
不必要每次user.user_extensions.xxx以及判断是否为空
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app/models/setting.rb :165
  # fixed domain url in development. tantantan's bug
  if Rails.env.development?
    methods.map do |m|
      define_singleton_method m do; nil; end if m.to_s =~ /([a-zA-Z]+_domain)$/
    end
  end
  程序部分链接中制定了subdomain参数，使链接在二级域名中来回跳转。
  为了开发方便，使之功能在development模式下失效。 
  # => nyan
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app/controller/projects_controller.rb ===> projects#fake
  fake filter: 修改了传到页面中的Count后缀的数量
  改为正确的数量，删掉fake过滤器即可
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#导航栏匹配域名显示和改变
app\helper\application_helper.rb
# rewrite navigation 

app\views\layouts\_base_header.html.erb
# reset navigation by domain name and url through regular match
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#首页根据域名匹配进入不同的页面
app\controller\welcome_controller.rb
  def entry_select_user
    if request.original_url.match(/user\.trustie\.net/)
      redirect_to(:controller => "users", :action => "index")
      return 0
    end
  end
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