Merge pull request #15 from hiroraba/fix

Fix ruby version
Update rails.sh
Update rails.sh
Update Vagrantfile
Update rails.sh
Update Vagrantfile
Update rails.sh
Update Vagrantfile
Update rails.sh
Update rails.sh
Update Vagrantfile
Update rails.sh
Update rails.sh
Update rails.sh
Update rails.sh
Update rails.sh
Update rails.sh
Update Vagrantfile
Update Vagrantfile
Update rails.sh