- Clone `kubernetes/kubernetes` in `update-vendor.sh` shallowly, instead of fetching all revisions
  - Speed up binpacking by reducing the number of PreFilter calls (call once per pod instead of #pods*#nodes times)
  - Speed up finding unneeded nodes by 5x+ in very large clusters by reducing the number of PreFilter calls
  - Expose `--max-nodes-total` as a metric
  - Errors in `IncreaseSize` changed from type `apiError` to `cloudProviderError`

  // Init containers may not have Lifecycle actions, Readiness probes, Liveness probes, or Startup probes.
  // The resourceRequirements of an init container are taken into account during scheduling
  // by finding the highest request/limit for each resource type, and then using the max of
  // of that value or the sum of the normal containers. Limits are applied to init containers
  // in a similar fashion.