chore(package): update broccoli-concat to version 2.2.1 (#115)
chore(package): update broccoli-concat to version 2.2.1 (#115)

https://greenkeeper.io/
kevinansfield/Ghost-Admin,dbalders/Ghost-Admin,TryGhost/Ghost-Admin,acburdine/Ghost-Admin,airycanon/Ghost-Admin,JohnONolan/Ghost-Admin,JohnONolan/Ghost-Admin,kevinansfield/Ghost-Admin,airycanon/Ghost-Admin,TryGhost/Ghost-Admin,acburdine/Ghost-Admin,dbalders/Ghost-Admin