deploying concourse 4.0 without existing .flyrc
deploying concourse 4.0 without existing .flyrc

* there is a braking change in Concourse 4.0. .rsync file format and the
token format are different.

Signed-off-by: Sapphire Mason-Brown <e19ed404046ab60ef29f90885e506dc19247df93@engineerbetter.com>

EngineerBetter/concourse-up,EngineerBetter/concourse-up,EngineerBetter/concourse-up