增加抓取全部本週電影內容即針對單一電影抓取其喜歡及不喜歡的數目

movie_review:
沒給任何參數則是呼叫movies傳回所有在本週電影的電影資訊
有給參數則呼叫movie就傳回該電影的喜歡及不喜歡的個數
Added iconv gem into Gemfile
Let the output be yaml format
Rewrote the app.rb
Merge branch 'lee' into develop
adding new functions
Resolved conflict
Deleted useless requirement
Merge branch 'transedward-tu' into develop
Resolved some rubocop problems
Resolved conflict
generate two spec files and change to_yaml in lib