Update Vagrantfile
Update Vagrantfile

Download and install the Cloud Foundry CLI. 
Added the 'cf-cli' in line 87.
NYU-DevOps-Fall2017-PromotionsTeam/promotions,NYU-DevOps-Fall2017-PromotionsTeam/promotions,NYU-DevOps-Fall2017-PromotionsTeam/promotions,NYU-DevOps-Fall2017-PromotionsTeam/promotions