Automatic merge from submit-queue
Staging 1.5 client
Created the 1.5 folder and remove the 1.4 folder in the staging area in the master branch.
Content of kubernetes/client-go/1.4 will be pulled from the kubernetes/kubernetes 1.4 branch (https://github.com/kubernetes/contrib/pull/1719)
Prior to this, we would approve eviction as long as the current state of
the pods matched the budget. The new version requires that after the
eviction, the pods would still match the budget.
Also update tests to match.
