Update Gemfile
Add "gem 'httpclient'"
Update Gemfile.lock
Do "bundle install"
Update app/controllers/newplan_controller.rb
Use HTTPClient to use Rakuten API
Update app/assets/javascripts/newplan.js app/controllers/newplan_controller.rb
Fix code (Refactoring)
Merge branch 'use_rakuten_api'
Merge remote-tracking branch 'origin/master' into merge_branch
Merge branch 'merge_branch'