* Add new rubygems
   * nokogiri & rspec
* Initialize source code
   * touch new directory & files
* Initialize Rspec
   * execute "rspec --init" command
* create new module & class
   * 'Nicc' module & 'Info' class
* create rspec test
   * it is most simply
* Add new configuration to spec_helper for using rspec
   * To load all Nicc modules & class
* Add new gem 'httparty'
   * To send GET request easily
* rename file
   * There is two API_URL
* create 'ext_info' class
   * done test
* touch new file
   * new info class 'i_info'
* create 'i_info' class
   * done test