If an instance refresh was never called for an ASG, then `update asg` would always fail.
0.8.1
Wait for ASG refresh events to finish with a timeout. Also wait 60 seconds if the ASG isn't able to go into a refresh straight away (due to a previous refresh job).
0.8.0
Use refresh_asg() instead of manual down/up for normal refreshes
0.7.1
0.7.0
Backwards incompatible refactoring to k8s subcommands, and more robust handling of updating manifests.
0.6.3
Added `--scale-down-inactive` to `akinaka update asg`