Test heroku
Update .travis.yml
Update .travis.yml
delete vendor/plugins/.gitkeep
Added gem rails_12factor to avoid warnings on heroku
Replace remove to clear
change gem
Merge branch 'master' of github.com:robinhood205/Aiit-Student-Manager
fix migrate bug
delete development.log
delete dqlite3
Update Gemfile
Update Gemfile
Update .travis.yml

bundlerを最新にして、install時間を短くします。
Merge pull request #17 from robinhood205/f/v2

F/v2
Update heroku.sh
Update heroku.sh
Update README.rdoc