Merge remote-tracking branch 'origin/refactor_kanpe' into refactor_yota
ajax の postData から authenticity_token を消す (jquery-ujsがやってくれていたので)

Update:   app/assets/javascripts/plans.js
Merge remote-tracking branch 'origin/refactor_kanpe' into refactor_yota
json の key からシングルクォートをはずす

Update:   app/assets/javascripts/plans.js
Merge pull request #63 from RyuPiT/refactor_yota

Refactor yota