gemspecのrailsのバージョンを~> 4.0.0に更新
gemspecのrailsのバージョンを~> 4.0.0に更新

Ikuyadeu/smalruby-editor,Ikuyadeu/smalruby-editor,smalruby/smalruby-editor,takaokouji/smalruby-editor,smalruby/smalruby-editor,takaokouji/smalruby-editor,smalruby/smalruby-editor,Ikuyadeu/smalruby-editor,takaokouji/smalruby-editor