merb, console, install webrat

webrat is required for merb-core app running in console
merb console require webrat
<br /> sudo gem install webrat<br /><br /> #webrat 需要一些lib, 像libxslt1-dev ,libxml-ruby, libxslt-ruby, libxml2, 如果沒有的話, 請<br />sudo apt-get install libxml-ruby libxslt-ruby libxml2 libxslt1-dev<br /><br />#(if nokogiri installs, the webrat gem should install and merb -i should work)<br />sudo gem install nokogiri<br />